56639163 has 32 divisors (see below), whose sum is σ = 89187840. Its totient is φ = 31299840.

The previous prime is 56639159. The next prime is 56639227. The reversal of 56639163 is 36193665.

It is not a de Polignac number, because 56639163 - 2² = 56639159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56639153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134968 + ... + 135386.

It is an arithmetic number, because the mean of its divisors is an integer number (2787120).

Almost surely, 2^56639163 is an apocalyptic number.

56639163 is a deficient number, since it is larger than the sum of its proper divisors (32548677).

56639163 is a wasteful number, since it uses less digits than its factorization.

56639163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 87480, while the sum is 39.

The square root of 56639163 is about 7525.8994811252. The cubic root of 56639163 is about 384.0362989232.

The spelling of 56639163 in words is "fifty-six million, six hundred thirty-nine thousand, one hundred sixty-three".