50139030 has 32 divisors (see below), whose sum is σ = 120559104. Its totient is φ = 13345376.

The previous prime is 50139029. The next prime is 50139031. The reversal of 50139030 is 3093105.

It is an interprime number because it is at equal distance from previous prime (50139029) and next prime (50139031).

It is a junction number, because it is equal to n+sod(n) for n = 50138988 and 50139006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139031) 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, 19267 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (3767472).

Almost surely, 2^50139030 is an apocalyptic number.

50139030 is an abundant number, since it is smaller than the sum of its proper divisors (70420074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50139030 is a wasteful number, since it uses less digits than its factorization.

50139030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 50139030 is about 7080.8918929751. The cubic root of 50139030 is about 368.7442944631.

The spelling of 50139030 in words is "fifty million, one hundred thirty-nine thousand, thirty".