225164044 has 24 divisors (see below), whose sum is σ = 450696960. Its totient is φ = 96419856.

The previous prime is 225164011. The next prime is 225164057. The reversal of 225164044 is 440461522.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 42849 + ... + 47815.

It is an arithmetic number, because the mean of its divisors is an integer number (18779040).

Almost surely, 2^225164044 is an apocalyptic number.

It is an amenable number.

225164044 is an abundant number, since it is smaller than the sum of its proper divisors (225532916).

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

225164044 is a wasteful number, since it uses less digits than its factorization.

225164044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597 (or 6595 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 225164044 is about 15005.4671370138. The cubic root of 225164044 is about 608.3679782775.

The spelling of 225164044 in words is "two hundred twenty-five million, one hundred sixty-four thousand, forty-four".