50891251432 has 48 divisors (see below), whose sum is σ = 114580725120. Its totient is φ = 21106965600.

The previous prime is 50891251379. The next prime is 50891251451. The reversal of 50891251432 is 23415219805.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2081794 + ... + 2106097.

It is an arithmetic number, because the mean of its divisors is an integer number (2387098440).

Almost surely, 2^50891251432 is an apocalyptic number.

It is an amenable number.

50891251432 is an abundant number, since it is smaller than the sum of its proper divisors (63689473688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50891251432 is a wasteful number, since it uses less digits than its factorization.

50891251432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187942 (or 4187931 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

It can be divided in two parts, 5089 and 1251432, that added together give a palindrome (1256521).

The spelling of 50891251432 in words is "fifty billion, eight hundred ninety-one million, two hundred fifty-one thousand, four hundred thirty-two".