50138136 has 64 divisors (see below), whose sum is σ = 140767200. Its totient is φ = 16533504.

The previous prime is 50138087. The next prime is 50138149. The reversal of 50138136 is 63183105.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19756 + ... + 22148.

Almost surely, 2^50138136 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 50138136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70383600).

50138136 is an abundant number, since it is smaller than the sum of its proper divisors (90629064).

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

50138136 is a wasteful number, since it uses less digits than its factorization.

50138136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 50138136 is about 7080.8287650529. The cubic root of 50138136 is about 368.7421028281.

The spelling of 50138136 in words is "fifty million, one hundred thirty-eight thousand, one hundred thirty-six".