56495557 has 2 divisors, whose sum is σ = 56495558. Its totient is φ = 56495556.

The previous prime is 56495519. The next prime is 56495587. The reversal of 56495557 is 75559465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29931841 + 26563716 = 5471^2 + 5154^2 .

It is a cyclic number.

It is not a de Polignac number, because 56495557 - 2¹¹ = 56493509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56495587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28247778 + 28247779.

It is an arithmetic number, because the mean of its divisors is an integer number (28247779).

Almost surely, 2^56495557 is an apocalyptic number.

It is an amenable number.

56495557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56495557 is an equidigital number, since it uses as much as digits as its factorization.

56495557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945000, while the sum is 46.

The square root of 56495557 is about 7516.3526394123. The cubic root of 56495557 is about 383.7114554191.

The spelling of 56495557 in words is "fifty-six million, four hundred ninety-five thousand, five hundred fifty-seven".