50139028 has 48 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 22982400.

The previous prime is 50138969. The next prime is 50139029. The reversal of 50139028 is 82093105.

It is a junction number, because it is equal to n+sod(n) for n = 50138987 and 50139005.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262413 + ... + 262603.

It is an arithmetic number, because the mean of its divisors is an integer number (1989120).

Almost surely, 2^50139028 is an apocalyptic number.

50139028 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

50139028 is a deficient number, since it is larger than the sum of its proper divisors (45338732).

50139028 is a wasteful number, since it uses less digits than its factorization.

50139028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 50139028 is about 7080.8917517499. The cubic root of 50139028 is about 368.7442895601.

It can be divided in two parts, 5013 and 9028, that added together give a palindrome (14041).

The spelling of 50139028 in words is "fifty million, one hundred thirty-nine thousand, twenty-eight".