56983931 has 4 divisors (see below), whose sum is σ = 57046200. Its totient is φ = 56921664.

The previous prime is 56983919. The next prime is 56983939. The reversal of 56983931 is 13938965.

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 56983931 - 2¹⁸ = 56721787 is a prime.

It is a super-2 number, since 2×56983931² = 6494336784425522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56983939) 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, 29741 + ... + 31598.

It is an arithmetic number, because the mean of its divisors is an integer number (14261550).

Almost surely, 2^56983931 is an apocalyptic number.

56983931 is a deficient number, since it is larger than the sum of its proper divisors (62269).

56983931 is an equidigital number, since it uses as much as digits as its factorization.

56983931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62268.

The product of its digits is 174960, while the sum is 44.

The square root of 56983931 is about 7548.7701647354. The cubic root of 56983931 is about 384.8139450710.

The spelling of 56983931 in words is "fifty-six million, nine hundred eighty-three thousand, nine hundred thirty-one".