50138536 has 32 divisors (see below), whose sum is σ = 107712000. Its totient is φ = 21433536.

The previous prime is 50138533. The next prime is 50138603. The reversal of 50138536 is 63583105.

It is a junction number, because it is equal to n+sod(n) for n = 50138498 and 50138507.

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 7 ways as a sum of consecutive naturals, for example, 27625 + ... + 29383.

It is an arithmetic number, because the mean of its divisors is an integer number (3366000).

Almost surely, 2^50138536 is an apocalyptic number.

50138536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

50138536 is an abundant number, since it is smaller than the sum of its proper divisors (57573464).

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

50138536 is a wasteful number, since it uses less digits than its factorization.

50138536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 50138536 is about 7080.8570102778. The cubic root of 50138536 is about 368.7430834286.

The spelling of 50138536 in words is "fifty million, one hundred thirty-eight thousand, five hundred thirty-six".