50881191 has 4 divisors (see below), whose sum is σ = 67841592. Its totient is φ = 33920792.

The previous prime is 50881163. The next prime is 50881217. The reversal of 50881191 is 19118805.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50881191 - 2²⁵ = 17326759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50881141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8480196 + ... + 8480201.

It is an arithmetic number, because the mean of its divisors is an integer number (16960398).

Almost surely, 2^50881191 is an apocalyptic number.

50881191 is a deficient number, since it is larger than the sum of its proper divisors (16960401).

50881191 is a wasteful number, since it uses less digits than its factorization.

50881191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960400.

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 50881191 is about 7133.1052845167. The cubic root of 50881191 is about 370.5547825405.

Adding to 50881191 its reverse (19118805), we get a palindrome (69999996).

The spelling of 50881191 in words is "fifty million, eight hundred eighty-one thousand, one hundred ninety-one".