50624139 has 4 divisors (see below), whose sum is σ = 67498856. Its totient is φ = 33749424.

The previous prime is 50624131. The next prime is 50624149. The reversal of 50624139 is 93142605.

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

It is not a de Polignac number, because 50624139 - 2³ = 50624131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50624131) 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, 8437354 + ... + 8437359.

It is an arithmetic number, because the mean of its divisors is an integer number (16874714).

Almost surely, 2^50624139 is an apocalyptic number.

50624139 is a deficient number, since it is larger than the sum of its proper divisors (16874717).

50624139 is a wasteful number, since it uses less digits than its factorization.

50624139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16874716.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 50624139 is about 7115.0642302090. The cubic root of 50624139 is about 369.9297139440.

The spelling of 50624139 in words is "fifty million, six hundred twenty-four thousand, one hundred thirty-nine".