56512711 has 2 divisors, whose sum is σ = 56512712. Its totient is φ = 56512710.

The previous prime is 56512693. The next prime is 56512717. The reversal of 56512711 is 11721565.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56512711 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56512711.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56512717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256355 + 28256356.

It is an arithmetic number, because the mean of its divisors is an integer number (28256356).

Almost surely, 2^56512711 is an apocalyptic number.

56512711 is a deficient number, since it is larger than the sum of its proper divisors (1).

56512711 is an equidigital number, since it uses as much as digits as its factorization.

56512711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 28.

The square root of 56512711 is about 7517.4936647795. The cubic root of 56512711 is about 383.7502875006.

The spelling of 56512711 in words is "fifty-six million, five hundred twelve thousand, seven hundred eleven".