(5^2)^3=

(5^2)^3 is equal to 5^6.

First, we calculate 5^2, which is equal to 25.
Next, we raise 25 to the power of 3: 25^3.
25^3 is equal to 25 * 25 * 25, which is equal to 15,625.

Therefore, (5^2)^3 is equal to 15,625.