56510055163 has 2 divisors, whose sum is σ = 56510055164. Its totient is φ = 56510055162.

The previous prime is 56510055143. The next prime is 56510055191. The reversal of 56510055163 is 36155001565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56510055163 is a prime.

It is not a weakly prime, because it can be changed into another prime (56510055103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28255027581 + 28255027582.

It is an arithmetic number, because the mean of its divisors is an integer number (28255027582).

Almost surely, 2^56510055163 is an apocalyptic number.

56510055163 is a deficient number, since it is larger than the sum of its proper divisors (1).

56510055163 is an equidigital number, since it uses as much as digits as its factorization.

56510055163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The spelling of 56510055163 in words is "fifty-six billion, five hundred ten million, fifty-five thousand, one hundred sixty-three".