56930971 has 2 divisors, whose sum is σ = 56930972. Its totient is φ = 56930970.

The previous prime is 56930969. The next prime is 56930983. The reversal of 56930971 is 17903965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56930971 - 2¹ = 56930969 is a prime.

It is a super-2 number, since 2×56930971² = 6482270918005682, which contains 22 as substring.

Together with 56930969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56930921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28465485 + 28465486.

It is an arithmetic number, because the mean of its divisors is an integer number (28465486).

Almost surely, 2^56930971 is an apocalyptic number.

56930971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56930971 is an equidigital number, since it uses as much as digits as its factorization.

56930971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 56930971 is about 7545.2614931492. The cubic root of 56930971 is about 384.6946947082.

The spelling of 56930971 in words is "fifty-six million, nine hundred thirty thousand, nine hundred seventy-one".