56579847 has 4 divisors (see below), whose sum is σ = 75439800. Its totient is φ = 37719896.

The previous prime is 56579843. The next prime is 56579849. The reversal of 56579847 is 74897565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56579847 - 2² = 56579843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56579847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56579843) 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, 9429972 + ... + 9429977.

It is an arithmetic number, because the mean of its divisors is an integer number (18859950).

Almost surely, 2^56579847 is an apocalyptic number.

56579847 is a deficient number, since it is larger than the sum of its proper divisors (18859953).

56579847 is a wasteful number, since it uses less digits than its factorization.

56579847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18859952.

The product of its digits is 2116800, while the sum is 51.

The square root of 56579847 is about 7521.9576574187. The cubic root of 56579847 is about 383.9021899866.

The spelling of 56579847 in words is "fifty-six million, five hundred seventy-nine thousand, eight hundred forty-seven".