56941931 has 4 divisors (see below), whose sum is σ = 57291432. Its totient is φ = 56592432.

The previous prime is 56941921. The next prime is 56941961. The reversal of 56941931 is 13914965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13914965 = 5 ⋅2782993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56941931 is a prime.

It is a super-2 number, since 2×56941931² = 6484767012017522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56941921) 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, 174506 + ... + 174831.

It is an arithmetic number, because the mean of its divisors is an integer number (14322858).

Almost surely, 2^56941931 is an apocalyptic number.

56941931 is a deficient number, since it is larger than the sum of its proper divisors (349501).

56941931 is a wasteful number, since it uses less digits than its factorization.

56941931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349500.

The product of its digits is 29160, while the sum is 38.

The square root of 56941931 is about 7545.9877418400. The cubic root of 56941931 is about 384.7193794756.

The spelling of 56941931 in words is "fifty-six million, nine hundred forty-one thousand, nine hundred thirty-one".