56110406557 has 2 divisors, whose sum is σ = 56110406558. Its totient is φ = 56110406556.

The previous prime is 56110406509. The next prime is 56110406593. The reversal of 56110406557 is 75560401165.

56110406557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33024339076 + 23086067481 = 181726^2 + 151941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56110406557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56110476557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28055203278 + 28055203279.

It is an arithmetic number, because the mean of its divisors is an integer number (28055203279).

Almost surely, 2^56110406557 is an apocalyptic number.

It is an amenable number.

56110406557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56110406557 is an equidigital number, since it uses as much as digits as its factorization.

56110406557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 56110406557 in words is "fifty-six billion, one hundred ten million, four hundred six thousand, five hundred fifty-seven".