56587867 has 8 divisors (see below), whose sum is σ = 64843776. Its totient is φ = 48374952.

The previous prime is 56587847. The next prime is 56587877. The reversal of 56587867 is 76878565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56587867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56587847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7873 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (8105472).

Almost surely, 2^56587867 is an apocalyptic number.

56587867 is a deficient number, since it is larger than the sum of its proper divisors (8255909).

56587867 is a wasteful number, since it uses less digits than its factorization.

56587867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21497.

The product of its digits is 2822400, while the sum is 52.

The square root of 56587867 is about 7522.4907444277. The cubic root of 56587867 is about 383.9203280709.

The spelling of 56587867 in words is "fifty-six million, five hundred eighty-seven thousand, eight hundred sixty-seven".