56993761 has 4 divisors (see below), whose sum is σ = 62175024. Its totient is φ = 51812500.

The previous prime is 56993743. The next prime is 56993767. The reversal of 56993761 is 16739965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56993761 - 2⁷ = 56993633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56993767) 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, 2590615 + ... + 2590636.

It is an arithmetic number, because the mean of its divisors is an integer number (15543756).

Almost surely, 2^56993761 is an apocalyptic number.

It is an amenable number.

56993761 is a deficient number, since it is larger than the sum of its proper divisors (5181263).

56993761 is a wasteful number, since it uses less digits than its factorization.

56993761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181262.

The product of its digits is 306180, while the sum is 46.

The square root of 56993761 is about 7549.4212360949. The cubic root of 56993761 is about 384.8360712127.

The spelling of 56993761 in words is "fifty-six million, nine hundred ninety-three thousand, seven hundred sixty-one".