56576291 has 4 divisors (see below), whose sum is σ = 56591352. Its totient is φ = 56561232.

The previous prime is 56576263. The next prime is 56576309. The reversal of 56576291 is 19267565.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56576291 - 2¹⁴ = 56559907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56576231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (14147838).

Almost surely, 2^56576291 is an apocalyptic number.

56576291 is a deficient number, since it is larger than the sum of its proper divisors (15061).

56576291 is an equidigital number, since it uses as much as digits as its factorization.

56576291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15060.

The product of its digits is 113400, while the sum is 41.

The square root of 56576291 is about 7521.7212790690. The cubic root of 56576291 is about 383.8941471653.

The spelling of 56576291 in words is "fifty-six million, five hundred seventy-six thousand, two hundred ninety-one".