225658632 has 32 divisors (see below), whose sum is σ = 564518880. Its totient is φ = 75169920.

The previous prime is 225658567. The next prime is 225658633. The reversal of 225658632 is 236856522.

It is a super-2 number, since 2×225658632² = 101843636392222848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (225658633) by changing a digit.

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, 61407 + ... + 64977.

It is an arithmetic number, because the mean of its divisors is an integer number (17641215).

Almost surely, 2^225658632 is an apocalyptic number.

It is an amenable number.

225658632 is an abundant number, since it is smaller than the sum of its proper divisors (338860248).

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

225658632 is a wasteful number, since it uses less digits than its factorization.

225658632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213 (or 6209 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 225658632 is about 15021.9383569498. The cubic root of 225658632 is about 608.8130929522.

The spelling of 225658632 in words is "two hundred twenty-five million, six hundred fifty-eight thousand, six hundred thirty-two".