56638460 has 24 divisors (see below), whose sum is σ = 119218176. Its totient is φ = 22602560.

The previous prime is 56638451. The next prime is 56638481. The reversal of 56638460 is 6483665.

It is a congruent number.

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, 6149 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (4967424).

Almost surely, 2^56638460 is an apocalyptic number.

It is an amenable number.

56638460 is an abundant number, since it is smaller than the sum of its proper divisors (62579716).

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

56638460 is a wasteful number, since it uses less digits than its factorization.

56638460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6613 (or 6611 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 56638460 is about 7525.8527755996. The cubic root of 56638460 is about 384.0347100424.

The spelling of 56638460 in words is "fifty-six million, six hundred thirty-eight thousand, four hundred sixty".