56920571 has 2 divisors, whose sum is σ = 56920572. Its totient is φ = 56920570.

The previous prime is 56920559. The next prime is 56920579. The reversal of 56920571 is 17502965.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56920571 is a prime.

It is not a weakly prime, because it can be changed into another prime (56920579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28460285 + 28460286.

It is an arithmetic number, because the mean of its divisors is an integer number (28460286).

Almost surely, 2^56920571 is an apocalyptic number.

56920571 is a deficient number, since it is larger than the sum of its proper divisors (1).

56920571 is an equidigital number, since it uses as much as digits as its factorization.

56920571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 56920571 is about 7544.5722874130. The cubic root of 56920571 is about 384.6712682768.

The spelling of 56920571 in words is "fifty-six million, nine hundred twenty thousand, five hundred seventy-one".