50139023 has 16 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 44011200.

The previous prime is 50138969. The next prime is 50139029. The reversal of 50139023 is 32093105.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50139023 - 2¹² = 50134927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50139023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139029) 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 in 15 ways as a sum of consecutive naturals, for example, 47738 + ... + 48776.

It is an arithmetic number, because the mean of its divisors is an integer number (3538080).

Almost surely, 2^50139023 is an apocalyptic number.

50139023 is a deficient number, since it is larger than the sum of its proper divisors (6470257).

50139023 is a wasteful number, since it uses less digits than its factorization.

50139023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 50139023 is about 7080.8913986870. The cubic root of 50139023 is about 368.7442773027.

The spelling of 50139023 in words is "fifty million, one hundred thirty-nine thousand, twenty-three".