56830931 has 2 divisors, whose sum is σ = 56830932. Its totient is φ = 56830930.

The previous prime is 56830897. The next prime is 56830937. The reversal of 56830931 is 13903865.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56830931 is a prime.

It is a super-2 number, since 2×56830931² = 6459509436653522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56830891 and 56830900.

It is not a weakly prime, because it can be changed into another prime (56830937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28415465 + 28415466.

It is an arithmetic number, because the mean of its divisors is an integer number (28415466).

Almost surely, 2^56830931 is an apocalyptic number.

56830931 is a deficient number, since it is larger than the sum of its proper divisors (1).

56830931 is an equidigital number, since it uses as much as digits as its factorization.

56830931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 56830931 is about 7538.6292520590. The cubic root of 56830931 is about 384.4692320665.

The spelling of 56830931 in words is "fifty-six million, eight hundred thirty thousand, nine hundred thirty-one".