56939 has 4 divisors (see below), whose sum is σ = 57624. Its totient is φ = 56256.

The previous prime is 56929. The next prime is 56941. The reversal of 56939 is 93965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93965 = 5 ⋅18793.

It is a cyclic number.

It is not a de Polignac number, because 56939 - 2⁴ = 56923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56909) 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, 197 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (14406).

2⁵⁶⁹³⁹ is an apocalyptic number.

56939 is a deficient number, since it is larger than the sum of its proper divisors (685).

56939 is an equidigital number, since it uses as much as digits as its factorization.

56939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

The product of its digits is 7290, while the sum is 32.

The square root of 56939 is about 238.6189430871. The cubic root of 56939 is about 38.4712778412.

The spelling of 56939 in words is "fifty-six thousand, nine hundred thirty-nine".