56522971 has 2 divisors, whose sum is σ = 56522972. Its totient is φ = 56522970.

The previous prime is 56522959. The next prime is 56523007. The reversal of 56522971 is 17922565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56522971 - 2¹¹ = 56520923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56522971.

It is not a weakly prime, because it can be changed into another prime (56522171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28261485 + 28261486.

It is an arithmetic number, because the mean of its divisors is an integer number (28261486).

Almost surely, 2^56522971 is an apocalyptic number.

56522971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56522971 is an equidigital number, since it uses as much as digits as its factorization.

56522971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 56522971 is about 7518.1760420996. The cubic root of 56522971 is about 383.7735096491.

The spelling of 56522971 in words is "fifty-six million, five hundred twenty-two thousand, nine hundred seventy-one".