56577203531 has 2 divisors, whose sum is σ = 56577203532. Its totient is φ = 56577203530.

The previous prime is 56577203497. The next prime is 56577203563. The reversal of 56577203531 is 13530277565.

56577203531 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 is a cyclic number.

It is not a de Polignac number, because 56577203531 - 2⁶ = 56577203467 is a prime.

It is a super-2 number, since 2×56577203531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56577203581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28288601765 + 28288601766.

It is an arithmetic number, because the mean of its divisors is an integer number (28288601766).

Almost surely, 2^56577203531 is an apocalyptic number.

56577203531 is a deficient number, since it is larger than the sum of its proper divisors (1).

56577203531 is an equidigital number, since it uses as much as digits as its factorization.

56577203531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 56577203531 in words is "fifty-six billion, five hundred seventy-seven million, two hundred three thousand, five hundred thirty-one".