50001165 has 32 divisors (see below), whose sum is σ = 94124160. Its totient is φ = 25097472.

The previous prime is 50001157. The next prime is 50001169. The reversal of 50001165 is 56110005.

50001165 is a `hidden beast` number, since 500 + 0 + 1 + 165 = 666.

It is not a de Polignac number, because 50001165 - 2³ = 50001157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50001169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8599 + ... + 13188.

It is an arithmetic number, because the mean of its divisors is an integer number (2941380).

Almost surely, 2^50001165 is an apocalyptic number.

It is an amenable number.

50001165 is a deficient number, since it is larger than the sum of its proper divisors (44122995).

50001165 is a wasteful number, since it uses less digits than its factorization.

50001165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21818 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 50001165 is about 7071.1501893256. The cubic root of 50001165 is about 368.4060111063.

The spelling of 50001165 in words is "fifty million, one thousand, one hundred sixty-five".