225665304 has 32 divisors (see below), whose sum is σ = 568289520. Its totient is φ = 74671616.

The previous prime is 225665287. The next prime is 225665339. The reversal of 225665304 is 403566522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31029 + ... + 37604.

Almost surely, 2^225665304 is an apocalyptic number.

225665304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225665304 is an abundant number, since it is smaller than the sum of its proper divisors (342624216).

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

225665304 is a wasteful number, since it uses less digits than its factorization.

225665304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68779 (or 68775 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 225665304 is about 15022.1604305107. The cubic root of 225665304 is about 608.8190931082.

The spelling of 225665304 in words is "two hundred twenty-five million, six hundred sixty-five thousand, three hundred four".