56307791 has 8 divisors (see below), whose sum is σ = 59819760. Its totient is φ = 52818048.

The previous prime is 56307751. The next prime is 56307809. The reversal of 56307791 is 19770365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56307791 - 2²² = 52113487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56307721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (7477470).

Almost surely, 2^56307791 is an apocalyptic number.

56307791 is a deficient number, since it is larger than the sum of its proper divisors (3511969).

56307791 is a wasteful number, since it uses less digits than its factorization.

56307791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 56307791 is about 7503.8517442711. The cubic root of 56307791 is about 383.2858884359.

The spelling of 56307791 in words is "fifty-six million, three hundred seven thousand, seven hundred ninety-one".