56823864 has 64 divisors (see below), whose sum is σ = 145367040. Its totient is φ = 18506880.

The previous prime is 56823863. The next prime is 56823883. The reversal of 56823864 is 46832865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56823863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313854 + ... + 314034.

It is an arithmetic number, because the mean of its divisors is an integer number (2271360).

Almost surely, 2^56823864 is an apocalyptic number.

It is an amenable number.

56823864 is an abundant number, since it is smaller than the sum of its proper divisors (88543176).

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

56823864 is a wasteful number, since it uses less digits than its factorization.

56823864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 416 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 56823864 is about 7538.1605183228. The cubic root of 56823864 is about 384.4532949899.

Subtracting from 56823864 its reverse (46832865), we obtain a palindrome (9990999).

The spelling of 56823864 in words is "fifty-six million, eight hundred twenty-three thousand, eight hundred sixty-four".