225547904 has 32 divisors (see below), whose sum is σ = 450105600. Its totient is φ = 112580352.

The previous prime is 225547873. The next prime is 225547919. The reversal of 225547904 is 409745522.

225547904 = 111² + 112² + ... + 878².

It is a tau number, because it is divible by the number of its divisors (32).

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, 99617 + ... + 101855.

It is an arithmetic number, because the mean of its divisors is an integer number (14065800).

Almost surely, 2^225547904 is an apocalyptic number.

It is an amenable number.

225547904 is a deficient number, since it is larger than the sum of its proper divisors (224557696).

225547904 is an equidigital number, since it uses as much as digits as its factorization.

225547904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 3028 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 225547904 is about 15018.2523617097. The cubic root of 225547904 is about 608.7134975519.

The spelling of 225547904 in words is "two hundred twenty-five million, five hundred forty-seven thousand, nine hundred four".