50682139 has 4 divisors (see below), whose sum is σ = 53349640. Its totient is φ = 48014640.

The previous prime is 50682127. The next prime is 50682157. The reversal of 50682139 is 93128605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93128605 = 5 ⋅18625721.

It is a cyclic number.

It is not a de Polignac number, because 50682139 - 2⁷ = 50682011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50682439) 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, 1333722 + ... + 1333759.

It is an arithmetic number, because the mean of its divisors is an integer number (13337410).

Almost surely, 2^50682139 is an apocalyptic number.

50682139 is a deficient number, since it is larger than the sum of its proper divisors (2667501).

50682139 is a wasteful number, since it uses less digits than its factorization.

50682139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667500.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 50682139 is about 7119.1389226507. The cubic root of 50682139 is about 370.0709359976.

The spelling of 50682139 in words is "fifty million, six hundred eighty-two thousand, one hundred thirty-nine".