Study the given pattern carefully and select the number that can replace the question mark (?) in it.

First row- 2, 57, 7
Second row- 6, 225, 3
Third row- 5, ?, 2

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /deleting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)