56590864 has 40 divisors (see below), whose sum is σ = 120536928. Its totient is φ = 25524480.

The previous prime is 56590847. The next prime is 56590883. The reversal of 56590864 is 46809565.

It is a self number, because there is not a number n which added to its sum of digits gives 56590864.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22939 + ... + 25285.

Almost surely, 2^56590864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56590864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60268464).

56590864 is an abundant number, since it is smaller than the sum of its proper divisors (63946064).

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

56590864 is a wasteful number, since it uses less digits than its factorization.

56590864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 56590864 is about 7522.6899444281. The cubic root of 56590864 is about 383.9271056657.

The spelling of 56590864 in words is "fifty-six million, five hundred ninety thousand, eight hundred sixty-four".