50890809 has 16 divisors (see below), whose sum is σ = 74165760. Its totient is φ = 30900480.

The previous prime is 50890787. The next prime is 50890811. The reversal of 50890809 is 90809805.

It is not a de Polignac number, because 50890809 - 2²⁵ = 17336377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50890849) 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, 14514 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (4635360).

Almost surely, 2^50890809 is an apocalyptic number.

It is an amenable number.

50890809 is a deficient number, since it is larger than the sum of its proper divisors (23274951).

50890809 is a wasteful number, since it uses less digits than its factorization.

50890809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32240.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 50890809 is about 7133.7794330916. The cubic root of 50890809 is about 370.5781295527.

The spelling of 50890809 in words is "fifty million, eight hundred ninety thousand, eight hundred nine".