56757740445 has 160 divisors (see below), whose sum is σ = 121118823936. Its totient is φ = 24886310400.

The previous prime is 56757740407. The next prime is 56757740449. The reversal of 56757740445 is 54404775765.

56757740445 is a `hidden beast` number, since 5 + 67 + 577 + 4 + 0 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 56757740445 - 2²⁰ = 56756691869 is a prime.

It is a super-2 number, since 2×56757740445² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56757740391 and 56757740400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56757740449) 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 159 ways as a sum of consecutive naturals, for example, 7443735 + ... + 7451355.

Almost surely, 2^56757740445 is an apocalyptic number.

It is an amenable number.

56757740445 is an abundant number, since it is smaller than the sum of its proper divisors (64361083491).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56757740445 is a wasteful number, since it uses less digits than its factorization.

56757740445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753 (or 7744 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 54.

The spelling of 56757740445 in words is "fifty-six billion, seven hundred fifty-seven million, seven hundred forty thousand, four hundred forty-five".