50189918 has 8 divisors (see below), whose sum is σ = 75317520. Its totient is φ = 25084080.

The previous prime is 50189911. The next prime is 50189929. The reversal of 50189918 is 81998105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50189911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2858 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (9414690).

Almost surely, 2^50189918 is an apocalyptic number.

50189918 is a deficient number, since it is larger than the sum of its proper divisors (25127602).

50189918 is a wasteful number, since it uses less digits than its factorization.

50189918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10882.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 50189918 is about 7084.4843143309. The cubic root of 50189918 is about 368.8690031309.

The spelling of 50189918 in words is "fifty million, one hundred eighty-nine thousand, nine hundred eighteen".