50808891 has 16 divisors (see below), whose sum is σ = 78224384. Its totient is φ = 28733184.

The previous prime is 50808887. The next prime is 50808997. The reversal of 50808891 is 19880805.

It is not a de Polignac number, because 50808891 - 2² = 50808887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50808091) 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, 10435 + ... + 14508.

It is an arithmetic number, because the mean of its divisors is an integer number (4889024).

Almost surely, 2^50808891 is an apocalyptic number.

50808891 is a deficient number, since it is larger than the sum of its proper divisors (27415493).

50808891 is a wasteful number, since it uses less digits than its factorization.

50808891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25050.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 50808891 is about 7128.0355638843. The cubic root of 50808891 is about 370.3791851671.

The spelling of 50808891 in words is "fifty million, eight hundred eight thousand, eight hundred ninety-one".