56280672657 has 48 divisors (see below), whose sum is σ = 91152959040. Its totient is φ = 33161616000.

The previous prime is 56280672649. The next prime is 56280672659. The reversal of 56280672657 is 75627608265.

56280672657 is a `hidden beast` number, since 5 + 628 + 0 + 6 + 7 + 2 + 6 + 5 + 7 = 666.

56280672657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56280672657 - 2³ = 56280672649 is a prime.

It is a super-2 number, since 2×56280672657² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56280672659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5309719 + ... + 5320307.

It is an arithmetic number, because the mean of its divisors is an integer number (1899019980).

Almost surely, 2^56280672657 is an apocalyptic number.

It is an amenable number.

56280672657 is a deficient number, since it is larger than the sum of its proper divisors (34872286383).

56280672657 is a wasteful number, since it uses less digits than its factorization.

56280672657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12094 (or 12091 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 56280672657 in words is "fifty-six billion, two hundred eighty million, six hundred seventy-two thousand, six hundred fifty-seven".