50845139 has 2 divisors, whose sum is σ = 50845140. Its totient is φ = 50845138.

The previous prime is 50845127. The next prime is 50845163. The reversal of 50845139 is 93154805.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50845139 - 2²⁰ = 49796563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50845099 and 50845108.

It is not a weakly prime, because it can be changed into another prime (50845199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25422569 + 25422570.

It is an arithmetic number, because the mean of its divisors is an integer number (25422570).

Almost surely, 2^50845139 is an apocalyptic number.

50845139 is a deficient number, since it is larger than the sum of its proper divisors (1).

50845139 is an equidigital number, since it uses as much as digits as its factorization.

50845139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 50845139 is about 7130.5777465785. The cubic root of 50845139 is about 370.4672426772.

The spelling of 50845139 in words is "fifty million, eight hundred forty-five thousand, one hundred thirty-nine".