56571390527 has 2 divisors, whose sum is σ = 56571390528. Its totient is φ = 56571390526.

The previous prime is 56571390521. The next prime is 56571390553. The reversal of 56571390527 is 72509317565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56571390527 - 2⁴ = 56571390511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56571390521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28285695263 + 28285695264.

It is an arithmetic number, because the mean of its divisors is an integer number (28285695264).

Almost surely, 2^56571390527 is an apocalyptic number.

56571390527 is a deficient number, since it is larger than the sum of its proper divisors (1).

56571390527 is an equidigital number, since it uses as much as digits as its factorization.

56571390527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1984500, while the sum is 50.

The spelling of 56571390527 in words is "fifty-six billion, five hundred seventy-one million, three hundred ninety thousand, five hundred twenty-seven".