56565402427 has 2 divisors, whose sum is σ = 56565402428. Its totient is φ = 56565402426.

The previous prime is 56565402409. The next prime is 56565402469. The reversal of 56565402427 is 72420456565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56565402427 - 2²³ = 56557013819 is a prime.

It is not a weakly prime, because it can be changed into another prime (56565402497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282701213 + 28282701214.

It is an arithmetic number, because the mean of its divisors is an integer number (28282701214).

Almost surely, 2^56565402427 is an apocalyptic number.

56565402427 is a deficient number, since it is larger than the sum of its proper divisors (1).

56565402427 is an equidigital number, since it uses as much as digits as its factorization.

56565402427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 56565402427 in words is "fifty-six billion, five hundred sixty-five million, four hundred two thousand, four hundred twenty-seven".