A silicone compound represented by the following average composition formula and characterized by having a weight average molecular weight of 500 to 200000, measured by a gel permeation chromatography analysis in terms of polystyrene, R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-d)/2 wherein, "a", "b", "c", and "d" each is 1.0≤a≤2.5, 0.001≤b≤1.5, 0.001≤c≤1.5, and 0≤d≤1.0, R 1 represents an organic group of the same kind or different kinds each other selected from an organic group represented by an alkyl group, an aryl group, an aralkyl group, and a fluorine-substituted alkyl group having 1 to 30 carbon atoms, and a general formula -C I H 21 -O-R 5, wherein, R 5 represents a hydrogen atom, a hydrocarbon group having 4 to 30 carbons, or an organic group represented by R 6 - -, R 6 represents a hydrocarbon group having 1 to 30 carbons, and "I" is an integer of 0≤I≤15; R 2 is a group represented by a general formula -Y-O-X wherein, Y represents a divalent hydrocarbon group having 3 to 20 carbons and optionally containing at least one of an ether bond and an ester bond, and X represents a polyhydric alcohol-substituted hydrocarbon group having at least two hydroxyl groups and optionally contains alkoxy group or ester group; R 3 is a monovalent branched type organosiloxane group represented by the following general formula, M o M R p D q D R r T s T R t Q u wherein, M=R 7 3 SiO 0.5, M R = R 7 2 R 8 SiO 0.5, D=R 7 2 SiO, D R =R 7 R 8 SiO, T=R 7 SiO 1.5, T R =R 8 SiO 1.5, Q=SiO 2, R 7 is an organic group of the same kind or different kinds selected from an alkyl group, an aryl group, an aralkyl group and a fluorine-substituted alkyl group having 1 to 30 carbons, and R 8 is an organic group represented by -C n H 2n -; "n" represents an integer of 1≤n≤5, "o" is an integer of 1 or larger, "q" and "s" each represents an integer of 0 or larger, "p", "r", "t", and "u" each represents 0 or 1; with the proviso that "s", "t" and "u" are not 0 simultaneously, a sum total of "p", "r" and "t" is 1, and when q=0, "o" represents 2 or larger and a sum total of "s" and "u" is 1 or larger; R 4 is a monovalent organosiloxane group represented by the following general formula or general formula, MM R D v1 M w D v1 D R v2 T R v3 wherein, M, M R, D, D R and T R are the same as those described above; v1 is 0≤v1≤500, v2 and v3 each represents the number of 0 or 1; with the proviso that a sum total of v2 and v3 is 1, and v1 and v3 are not 1 or larger simultaneously; W represents an integer of 2 to 3. measured by a gel permeation chromatography analysis in terms of polystyrene, R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-d)/2 wherein, "a", "b", "c", and "d" each is 1.0≤a≤2.5, 0.001≤b≤1.5, 0.001≤c≤1.5, and 0≤d≤1.0, R 1 represents an organic group of the same kind or different kinds each other selected from an organic group represented by an alkyl group, an aryl group, an aralkyl group, and a fluorine-substituted alkyl group having 1 to 30 carbon atoms, and a general formula -C I H 21 -O-R 5, wherein, R 5 represents a hydrogen atom, a hydrocarbon group having 4 to 30 carbons, or an organic group represented by R 6 - -, R 6 represents a hydrocarbon group having 1 to 30 carbons, and "I" is an integer of 0≤I≤15; R 2 is a group represented by a general formula -Y-O-X wherein, Y represents a divalent hydrocarbon group having 3 to 20 carbons and optionally containing at least one of an ether bond and an ester bond, and X represents a polyhydric alcohol-substituted hydrocarbon group having at least two hydroxyl groups and optionally contains alkoxy group or ester group; R 3 is a monovalent branched type organosiloxane group represented by the following general formula, M o M R p D q D R r T s T R t Q u wherein, M=R 7 3 SiO 0.5, M R = R 7 2 R 8 SiO 0.5, D=R 7 2 SiO, D R =R 7 R 8 SiO, T=R 7 SiO 1.5, T R =R 8 SiO 1.5, Q=SiO 2, R 7 is an organic group of the same kind or different kinds selected from an alkyl group, an aryl group, an aralkyl group and a fluorine-substituted alkyl group having 1 to 30 carbons, and R 8 is an organic group represented by -C n H 2n -; "n" represents an integer of 1≤n≤5, "o" is an integer of 1 or larger, "q" and "s" each represents an integer of 0 or larger, "p", "r", "t", and "u" each represents 0 or 1; with the proviso that "s", "t" and "u" are not 0 simultaneously, a sum total of "p", "r" and "t" is 1, and when q=0, "o" represents 2 or larger and a sum total of "s" and "u" is 1 or larger; R 4 is a monovalent organosiloxane group represented by the following general formula or general formula, MM R D v1 M w D v1 D R v2 T R v3 wherein, M, M R, D, D R and T R are the same as those described above; v1 is 0≤v1≤500, v2 and v3 each represents the number of 0 or 1; with the proviso that a sum total of v2 and v3 is 1, and v1 and v3 are not 1 or larger simultaneously; W represents an integer of 2 to 3.