56855 has 8 divisors (see below), whose sum is σ = 69552. Its totient is φ = 44608.

The previous prime is 56843. The next prime is 56857. The reversal of 56855 is 55865.

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

It is a cyclic number.

It is not a de Polignac number, because 56855 - 2⁸ = 56599 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56857) 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, 347 + ... + 483.

It is an arithmetic number, because the mean of its divisors is an integer number (8694).

2⁵⁶⁸⁵⁵ is an apocalyptic number.

56855 is a deficient number, since it is larger than the sum of its proper divisors (12697).

56855 is a wasteful number, since it uses less digits than its factorization.

56855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its digits is 6000, while the sum is 29.

The square root of 56855 is about 238.4428652738. The cubic root of 56855 is about 38.4523501128.

Subtracting from 56855 its reverse (55865), we obtain a triangular number (990 = T₄₄).

The spelling of 56855 in words is "fifty-six thousand, eight hundred fifty-five".