56499879 has 8 divisors (see below), whose sum is σ = 75467392. Its totient is φ = 37599480.

The previous prime is 56499871. The next prime is 56499889. The reversal of 56499879 is 97899465.

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

It is not a de Polignac number, because 56499879 - 2³ = 56499871 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 (56499871) 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, 14779 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (9433424).

Almost surely, 2^56499879 is an apocalyptic number.

56499879 is a deficient number, since it is larger than the sum of its proper divisors (18967513).

56499879 is a wasteful number, since it uses less digits than its factorization.

56499879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33557.

The product of its digits is 4898880, while the sum is 57.

The square root of 56499879 is about 7516.6401403819. The cubic root of 56499879 is about 383.7212400152.

The spelling of 56499879 in words is "fifty-six million, four hundred ninety-nine thousand, eight hundred seventy-nine".