50170139 has 2 divisors, whose sum is σ = 50170140. Its totient is φ = 50170138.

The previous prime is 50170129. The next prime is 50170147. The reversal of 50170139 is 93107105.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50170139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50170129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25085069 + 25085070.

It is an arithmetic number, because the mean of its divisors is an integer number (25085070).

Almost surely, 2^50170139 is an apocalyptic number.

50170139 is a deficient number, since it is larger than the sum of its proper divisors (1).

50170139 is an equidigital number, since it uses as much as digits as its factorization.

50170139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 50170139 is about 7083.0882388969. The cubic root of 50170139 is about 368.8205417473.

The spelling of 50170139 in words is "fifty million, one hundred seventy thousand, one hundred thirty-nine".