50038139 has 2 divisors, whose sum is σ = 50038140. Its totient is φ = 50038138.

The previous prime is 50038099. The next prime is 50038141. The reversal of 50038139 is 93183005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50038139 is a prime.

Together with 50038141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50038169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25019069 + 25019070.

It is an arithmetic number, because the mean of its divisors is an integer number (25019070).

Almost surely, 2^50038139 is an apocalyptic number.

50038139 is a deficient number, since it is larger than the sum of its proper divisors (1).

50038139 is an equidigital number, since it uses as much as digits as its factorization.

50038139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 50038139 is about 7073.7641323414. The cubic root of 50038139 is about 368.4967962424.

The spelling of 50038139 in words is "fifty million, thirty-eight thousand, one hundred thirty-nine".