225172304 has 20 divisors (see below), whose sum is σ = 498596064. Its totient is φ = 96502368.

The previous prime is 225172303. The next prime is 225172331. The reversal of 225172304 is 403271522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225172301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005122 + ... + 1005345.

Almost surely, 2^225172304 is an apocalyptic number.

It is an amenable number.

225172304 is an abundant number, since it is smaller than the sum of its proper divisors (273423760).

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

225172304 is a wasteful number, since it uses less digits than its factorization.

225172304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010482 (or 2010476 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 225172304 is about 15005.7423675072. The cubic root of 225172304 is about 608.3754173842.

The spelling of 225172304 in words is "two hundred twenty-five million, one hundred seventy-two thousand, three hundred four".