50556979 has 4 divisors (see below), whose sum is σ = 55153080. Its totient is φ = 45960880.

The previous prime is 50556943. The next prime is 50557019. The reversal of 50556979 is 97965505.

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 50556979 - 2¹³ = 50548787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50556179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298034 + ... + 2298055.

It is an arithmetic number, because the mean of its divisors is an integer number (13788270).

Almost surely, 2^50556979 is an apocalyptic number.

50556979 is a deficient number, since it is larger than the sum of its proper divisors (4596101).

50556979 is a wasteful number, since it uses less digits than its factorization.

50556979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596100.

The product of its (nonzero) digits is 425250, while the sum is 46.

The square root of 50556979 is about 7110.3431000199. The cubic root of 50556979 is about 369.7660537169.

The spelling of 50556979 in words is "fifty million, five hundred fifty-six thousand, nine hundred seventy-nine".