50979959 has 4 divisors (see below), whose sum is σ = 51381504. Its totient is φ = 50578416.

The previous prime is 50979947. The next prime is 50979967. The reversal of 50979959 is 95997905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95997905 = 5 ⋅19199581.

It is a cyclic number.

It is not a de Polignac number, because 50979959 - 2²⁰ = 49931383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50979959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50979919) 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, 200582 + ... + 200835.

It is an arithmetic number, because the mean of its divisors is an integer number (12845376).

Almost surely, 2^50979959 is an apocalyptic number.

50979959 is a deficient number, since it is larger than the sum of its proper divisors (401545).

50979959 is a wasteful number, since it uses less digits than its factorization.

50979959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401544.

The product of its (nonzero) digits is 1148175, while the sum is 53.

The square root of 50979959 is about 7140.0251400118. The cubic root of 50979959 is about 370.7943949801.

The spelling of 50979959 in words is "fifty million, nine hundred seventy-nine thousand, nine hundred fifty-nine".