50638272 has 56 divisors (see below), whose sum is σ = 139817856. Its totient is φ = 16144128.

The previous prime is 50638271. The next prime is 50638297. The reversal of 50638272 is 27283605.

It is a super-2 number, since 2×50638272² = 5128469182291968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50638271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318 + ... + 10149.

Almost surely, 2^50638272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50638272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69908928).

50638272 is an abundant number, since it is smaller than the sum of its proper divisors (89179584).

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

50638272 is a wasteful number, since it uses less digits than its factorization.

50638272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505 (or 11495 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 50638272 is about 7116.0573353508. The cubic root of 50638272 is about 369.9641357982.

The spelling of 50638272 in words is "fifty million, six hundred thirty-eight thousand, two hundred seventy-two".