225523564 has 24 divisors (see below), whose sum is σ = 477580320. Its totient is φ = 90967296.

The previous prime is 225523537. The next prime is 225523577. The reversal of 225523564 is 465325522.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236419 + ... + 237370.

It is an arithmetic number, because the mean of its divisors is an integer number (19899180).

Almost surely, 2^225523564 is an apocalyptic number.

It is an amenable number.

225523564 is an abundant number, since it is smaller than the sum of its proper divisors (252056756).

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

225523564 is a wasteful number, since it uses less digits than its factorization.

225523564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473817 (or 473815 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 225523564 is about 15017.4419925632. The cubic root of 225523564 is about 608.6916003271.

The spelling of 225523564 in words is "two hundred twenty-five million, five hundred twenty-three thousand, five hundred sixty-four".