556079879 has 4 divisors (see below), whose sum is σ = 559491576. Its totient is φ = 552668184.

The previous prime is 556079863. The next prime is 556079941. The reversal of 556079879 is 978970655.

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 556079879 - 2⁴ = 556079863 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 (556079819) 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, 1705604 + ... + 1705929.

It is an arithmetic number, because the mean of its divisors is an integer number (139872894).

Almost surely, 2^556079879 is an apocalyptic number.

556079879 is a deficient number, since it is larger than the sum of its proper divisors (3411697).

556079879 is a wasteful number, since it uses less digits than its factorization.

556079879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411696.

The product of its (nonzero) digits is 4762800, while the sum is 56.

The square root of 556079879 is about 23581.3459963591. The cubic root of 556079879 is about 822.3292286882.

The spelling of 556079879 in words is "five hundred fifty-six million, seventy-nine thousand, eight hundred seventy-nine".