50016139 has 4 divisors (see below), whose sum is σ = 50034600. Its totient is φ = 49997680.

The previous prime is 50016137. The next prime is 50016149. The reversal of 50016139 is 93161005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50016139 - 2¹ = 50016137 is a prime.

It is a super-2 number, since 2×50016139² = 5003228320934642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50016137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4282 + ... + 10879.

It is an arithmetic number, because the mean of its divisors is an integer number (12508650).

Almost surely, 2^50016139 is an apocalyptic number.

50016139 is a deficient number, since it is larger than the sum of its proper divisors (18461).

50016139 is a wasteful number, since it uses less digits than its factorization.

50016139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 50016139 is about 7072.2089194254. The cubic root of 50016139 is about 368.4427833230.

The spelling of 50016139 in words is "fifty million, sixteen thousand, one hundred thirty-nine".