50138532 has 36 divisors (see below), whose sum is σ = 130830336. Its totient is φ = 16173360.

The previous prime is 50138527. The next prime is 50138533. The reversal of 50138532 is 23583105.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×50138532² = 5027744782230048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50138496 and 50138505.

It is not an unprimeable number, because it can be changed into a prime (50138533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21348 + ... + 23579.

It is an arithmetic number, because the mean of its divisors is an integer number (3634176).

Almost surely, 2^50138532 is an apocalyptic number.

It is an amenable number.

50138532 is an abundant number, since it is smaller than the sum of its proper divisors (80691804).

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

50138532 is a wasteful number, since it uses less digits than its factorization.

50138532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44968 (or 44963 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 50138532 is about 7080.8567278261. The cubic root of 50138532 is about 368.7430736227.

The spelling of 50138532 in words is "fifty million, one hundred thirty-eight thousand, five hundred thirty-two".