56011604057 has 2 divisors, whose sum is σ = 56011604058. Its totient is φ = 56011604056.

The previous prime is 56011604041. The next prime is 56011604081. The reversal of 56011604057 is 75040611065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50915214736 + 5096389321 = 225644^2 + 71389^2 .

It is a cyclic number.

It is not a de Polignac number, because 56011604057 - 2⁴ = 56011604041 is a prime.

It is not a weakly prime, because it can be changed into another prime (56011603057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28005802028 + 28005802029.

It is an arithmetic number, because the mean of its divisors is an integer number (28005802029).

Almost surely, 2^56011604057 is an apocalyptic number.

It is an amenable number.

56011604057 is a deficient number, since it is larger than the sum of its proper divisors (1).

56011604057 is an equidigital number, since it uses as much as digits as its factorization.

56011604057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 56011604057 in words is "fifty-six billion, eleven million, six hundred four thousand, fifty-seven".