56638825 has 12 divisors (see below), whose sum is σ = 70789120. Its totient is φ = 44951760.

The previous prime is 56638817. The next prime is 56638837. The reversal of 56638825 is 52883665.

It is a happy number.

56638825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56638825 - 2³ = 56638817 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 5745 + ... + 12094.

Almost surely, 2^56638825 is an apocalyptic number.

It is an amenable number.

56638825 is a deficient number, since it is larger than the sum of its proper divisors (14150295).

56638825 is a wasteful number, since it uses less digits than its factorization.

56638825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17976 (or 17971 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 56638825 is about 7525.8770253041. The cubic root of 56638825 is about 384.0355349964.

The spelling of 56638825 in words is "fifty-six million, six hundred thirty-eight thousand, eight hundred twenty-five".