56587 has 4 divisors (see below), whose sum is σ = 57456. Its totient is φ = 55720.

The previous prime is 56569. The next prime is 56591. The reversal of 56587 is 78565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56587 - 2¹¹ = 54539 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (56527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328 + ... + 469.

It is an arithmetic number, because the mean of its divisors is an integer number (14364).

2⁵⁶⁵⁸⁷ is an apocalyptic number.

56587 is a deficient number, since it is larger than the sum of its proper divisors (869).

56587 is an equidigital number, since it uses as much as digits as its factorization.

56587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 8400, while the sum is 31.

The square root of 56587 is about 237.8802219605. The cubic root of 56587 is about 38.3918367341.

It can be divided in two parts, 5658 and 7, that added together give a palindrome (5665).

The spelling of 56587 in words is "fifty-six thousand, five hundred eighty-seven".