50190920 has 64 divisors (see below), whose sum is σ = 122411520. Its totient is φ = 18411264.

The previous prime is 50190911. The next prime is 50190923. The reversal of 50190920 is 2909105.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 50190920.

It is not an unprimeable number, because it can be changed into a prime (50190923) 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, 136577 + ... + 136943.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^50190920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50190920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61205760).

50190920 is an abundant number, since it is smaller than the sum of its proper divisors (72220600).

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

50190920 is a wasteful number, since it uses less digits than its factorization.

50190920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 50190920 is about 7084.5550318986. Note that the first 3 decimals coincide. The cubic root of 50190920 is about 368.8714578356.

The spelling of 50190920 in words is "fifty million, one hundred ninety thousand, nine hundred twenty".