56811679 has 8 divisors (see below), whose sum is σ = 60255072. Its totient is φ = 53449440.

The previous prime is 56811659. The next prime is 56811697. The reversal of 56811679 is 97611865.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56811679 - 2⁵ = 56811647 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 (56811619) 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, 18844 + ... + 21649.

It is an arithmetic number, because the mean of its divisors is an integer number (7531884).

Almost surely, 2^56811679 is an apocalyptic number.

56811679 is a deficient number, since it is larger than the sum of its proper divisors (3443393).

56811679 is a wasteful number, since it uses less digits than its factorization.

56811679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40577.

The product of its digits is 90720, while the sum is 43.

The square root of 56811679 is about 7537.3522539417. The cubic root of 56811679 is about 384.4258130017.

The spelling of 56811679 in words is "fifty-six million, eight hundred eleven thousand, six hundred seventy-nine".