56157 has 4 divisors (see below), whose sum is σ = 74880. Its totient is φ = 37436.

The previous prime is 56149. The next prime is 56167. The reversal of 56157 is 75165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56157 - 2³ = 56149 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56167) 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, 9357 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2⁵⁶¹⁵⁷ is an apocalyptic number.

It is an amenable number.

56157 is a deficient number, since it is larger than the sum of its proper divisors (18723).

56157 is a wasteful number, since it uses less digits than its factorization.

56157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18722.

The product of its digits is 1050, while the sum is 24.

The square root of 56157 is about 236.9746821920. The cubic root of 56157 is about 38.2943438895.

The spelling of 56157 in words is "fifty-six thousand, one hundred fifty-seven".