56758491 has 12 divisors (see below), whose sum is σ = 86299720. Its totient is φ = 35847360.

The previous prime is 56758463. The next prime is 56758553. The reversal of 56758491 is 19485765.

56758491 is a `hidden beast` number, since 5 + 67 + 584 + 9 + 1 = 666.

It is not a de Polignac number, because 56758491 - 2⁷ = 56758363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56758441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165790 + ... + 166131.

Almost surely, 2^56758491 is an apocalyptic number.

56758491 is a deficient number, since it is larger than the sum of its proper divisors (29541229).

56758491 is a wasteful number, since it uses less digits than its factorization.

56758491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331946 (or 331943 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 56758491 is about 7533.8231330447. The cubic root of 56758491 is about 384.3058070176.

The spelling of 56758491 in words is "fifty-six million, seven hundred fifty-eight thousand, four hundred ninety-one".