50091090591 has 16 divisors (see below), whose sum is σ = 70331177600. Its totient is φ = 31623926688.

The previous prime is 50091090571. The next prime is 50091090593. The reversal of 50091090591 is 19509019005.

It is not a de Polignac number, because 50091090591 - 2⁶ = 50091090527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50091090593) 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, 28336 + ... + 317781.

It is an arithmetic number, because the mean of its divisors is an integer number (4395698600).

Almost surely, 2^50091090591 is an apocalyptic number.

50091090591 is a deficient number, since it is larger than the sum of its proper divisors (20240087009).

50091090591 is a wasteful number, since it uses less digits than its factorization.

50091090591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348678.

The product of its (nonzero) digits is 18225, while the sum is 39.

The spelling of 50091090591 in words is "fifty billion, ninety-one million, ninety thousand, five hundred ninety-one".