Two hundred twenty five
225 is an odd number.
225 is a Harshad number, which means it is divisible by the sum of its digits (2 + 2 + 5 = 9, and 225 is divisible by 9).
In binary, 225 is represented as 11100001.
In hex, 225 is represented as e1.
Prime factorization of 225: 32 * 52.