50815872 has 48 divisors (see below), whose sum is σ = 146231280. Its totient is φ = 16938240.

The previous prime is 50815841. The next prime is 50815889. The reversal of 50815872 is 27851805.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20904 + ... + 23207.

It is an arithmetic number, because the mean of its divisors is an integer number (3046485).

Almost surely, 2^50815872 is an apocalyptic number.

It is an amenable number.

50815872 is an abundant number, since it is smaller than the sum of its proper divisors (95415408).

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

50815872 is a wasteful number, since it uses less digits than its factorization.

50815872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44131 (or 44116 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 50815872 is about 7128.5252331741. The cubic root of 50815872 is about 370.3961474128.

The spelling of 50815872 in words is "fifty million, eight hundred fifteen thousand, eight hundred seventy-two".