56491249275 has 18 divisors (see below), whose sum is σ = 101182104660. Its totient is φ = 30128666160.

The previous prime is 56491249181. The next prime is 56491249313. The reversal of 56491249275 is 57294219465.

It is a happy number.

56491249275 is a `hidden beast` number, since 5 + 64 + 91 + 2 + 492 + 7 + 5 = 666.

56491249275 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 56491249275 - 2⁹ = 56491248763 is a prime.

It is a super-2 number, since 2×56491249275² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 125535885 + ... + 125536334.

Almost surely, 2^56491249275 is an apocalyptic number.

56491249275 is a deficient number, since it is larger than the sum of its proper divisors (44690855385).

56491249275 is a wasteful number, since it uses less digits than its factorization.

56491249275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251072235 (or 251072227 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 56491249275 in words is "fifty-six billion, four hundred ninety-one million, two hundred forty-nine thousand, two hundred seventy-five".