56771514571 has 2 divisors, whose sum is σ = 56771514572. Its totient is φ = 56771514570.

The previous prime is 56771514511. The next prime is 56771514589. The reversal of 56771514571 is 17541517765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56771514571 - 2¹⁵ = 56771481803 is a prime.

It is not a weakly prime, because it can be changed into another prime (56771514511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28385757285 + 28385757286.

It is an arithmetic number, because the mean of its divisors is an integer number (28385757286).

Almost surely, 2^56771514571 is an apocalyptic number.

56771514571 is a deficient number, since it is larger than the sum of its proper divisors (1).

56771514571 is an equidigital number, since it uses as much as digits as its factorization.

56771514571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1029000, while the sum is 49.

The spelling of 56771514571 in words is "fifty-six billion, seven hundred seventy-one million, five hundred fourteen thousand, five hundred seventy-one".