225615504 has 20 divisors (see below), whose sum is σ = 582840176. Its totient is φ = 75205152.

The previous prime is 225615499. The next prime is 225615521. The reversal of 225615504 is 405516522.

225615504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350114 + ... + 2350209.

Almost surely, 2^225615504 is an apocalyptic number.

225615504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225615504 is an abundant number, since it is smaller than the sum of its proper divisors (357224672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225615504 is a wasteful number, since it uses less digits than its factorization.

225615504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700334 (or 4700328 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 225615504 is about 15020.5027878563. The cubic root of 225615504 is about 608.7743049184.

The spelling of 225615504 in words is "two hundred twenty-five million, six hundred fifteen thousand, five hundred four".