If 'CASE' is coded as '5231', 'CHAIR' is coded as '58206' and 'TEACH' is coded as '71258', what does '586037' stand for?

CHRIST

Respective code has been assigned to corresponding letters in the following way:

C = 5, A = 2, S = 3, E = 1

C = 5, H = 8, A = 2, I = 0, R = 6

T = 7, E = 1, A = 2, C = 5, H = 8

Thus, from the above-mentioned codes, we can say that: 586037 stands for CHRIST