56842931 has 2 divisors, whose sum is σ = 56842932. Its totient is φ = 56842930.

The previous prime is 56842859. The next prime is 56842967. The reversal of 56842931 is 13924865.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56842931 - 2²² = 52648627 is a prime.

It is a super-2 number, since 2×56842931² = 6462237609341522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56842231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28421465 + 28421466.

It is an arithmetic number, because the mean of its divisors is an integer number (28421466).

Almost surely, 2^56842931 is an apocalyptic number.

56842931 is a deficient number, since it is larger than the sum of its proper divisors (1).

56842931 is an equidigital number, since it uses as much as digits as its factorization.

56842931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 56842931 is about 7539.4251107097. The cubic root of 56842931 is about 384.4962907240.

The spelling of 56842931 in words is "fifty-six million, eight hundred forty-two thousand, nine hundred thirty-one".