56580453081 has 12 divisors (see below), whose sum is σ = 81878395300. Its totient is φ = 37650575520.

The previous prime is 56580453073. The next prime is 56580453089. The reversal of 56580453081 is 18035408565.

56580453081 is a `hidden beast` number, since 565 + 8 + 0 + 4 + 5 + 3 + 0 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (56580453073) and next prime (56580453089).

It can be written as a sum of positive squares in 2 ways, for example, as 20330197056 + 36250256025 = 142584^2 + 190395^2 .

It is not a de Polignac number, because 56580453081 - 2³ = 56580453073 is a prime.

It is a super-2 number, since 2×56580453081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56580453089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5805406 + ... + 5815143.

Almost surely, 2^56580453081 is an apocalyptic number.

It is an amenable number.

56580453081 is a deficient number, since it is larger than the sum of its proper divisors (25297942219).

56580453081 is a wasteful number, since it uses less digits than its factorization.

56580453081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621096 (or 11621093 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 56580453081 in words is "fifty-six billion, five hundred eighty million, four hundred fifty-three thousand, eighty-one".