50165988 has 12 divisors (see below), whose sum is σ = 117054000. Its totient is φ = 16721992.

The previous prime is 50165981. The next prime is 50166089. The reversal of 50165988 is 88956105.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×50165988² = 5033252704032288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (50165981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090238 + ... + 2090261.

It is an arithmetic number, because the mean of its divisors is an integer number (9754500).

Almost surely, 2^50165988 is an apocalyptic number.

It is an amenable number.

50165988 is an abundant number, since it is smaller than the sum of its proper divisors (66888012).

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

50165988 is a wasteful number, since it uses less digits than its factorization.

50165988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180506 (or 4180504 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 50165988 is about 7082.7952109319. The cubic root of 50165988 is about 368.8103695856.

The spelling of 50165988 in words is "fifty million, one hundred sixty-five thousand, nine hundred eighty-eight".