56863 has 4 divisors (see below), whose sum is σ = 57528. Its totient is φ = 56200.

The previous prime is 56857. The next prime is 56873. The reversal of 56863 is 36865.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 181 + ... + 382.

It is an arithmetic number, because the mean of its divisors is an integer number (14382).

2⁵⁶⁸⁶³ is an apocalyptic number.

56863 is a deficient number, since it is larger than the sum of its proper divisors (665).

56863 is a wasteful number, since it uses less digits than its factorization.

56863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 4320, while the sum is 28.

The square root of 56863 is about 238.4596401910. The cubic root of 56863 is about 38.4541535565.

It can be divided in two parts, 56 and 863, that added together give a palindrome (919).

The spelling of 56863 in words is "fifty-six thousand, eight hundred sixty-three".