56318871 has 32 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 31115520.

The previous prime is 56318839. The next prime is 56318887. The reversal of 56318871 is 17881365.

It is not a de Polignac number, because 56318871 - 2⁵ = 56318839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56313871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128070 + ... + 128508.

It is an arithmetic number, because the mean of its divisors is an integer number (2772000).

Almost surely, 2^56318871 is an apocalyptic number.

56318871 is a deficient number, since it is larger than the sum of its proper divisors (32385129).

56318871 is a wasteful number, since it uses less digits than its factorization.

56318871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

The product of its digits is 40320, while the sum is 39.

The square root of 56318871 is about 7504.5899954628. The cubic root of 56318871 is about 383.3110272255.

The spelling of 56318871 in words is "fifty-six million, three hundred eighteen thousand, eight hundred seventy-one".