50979894 has 48 divisors (see below), whose sum is σ = 120657600. Its totient is φ = 14313936.

The previous prime is 50979893. The next prime is 50979899. The reversal of 50979894 is 49897905.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50979893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15877 + ... + 18815.

It is an arithmetic number, because the mean of its divisors is an integer number (2513700).

Almost surely, 2^50979894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50979894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60328800).

50979894 is an abundant number, since it is smaller than the sum of its proper divisors (69677706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50979894 is a wasteful number, since it uses less digits than its factorization.

50979894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017 (or 3010 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 50979894 is about 7140.0205882056. The cubic root of 50979894 is about 370.7942373911.

The spelling of 50979894 in words is "fifty million, nine hundred seventy-nine thousand, eight hundred ninety-four".