50043139 has 4 divisors (see below), whose sum is σ = 50059224. Its totient is φ = 50027056.

The previous prime is 50043113. The next prime is 50043167. The reversal of 50043139 is 93134005.

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 50043139 - 2⁹ = 50042627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50043199) 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, 1717 + ... + 10150.

It is an arithmetic number, because the mean of its divisors is an integer number (12514806).

Almost surely, 2^50043139 is an apocalyptic number.

50043139 is a deficient number, since it is larger than the sum of its proper divisors (16085).

50043139 is a wasteful number, since it uses less digits than its factorization.

50043139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 50043139 is about 7074.1175421391. The cubic root of 50043139 is about 368.5090696979.

The spelling of 50043139 in words is "fifty million, forty-three thousand, one hundred thirty-nine".