50881587640 has 32 divisors (see below), whose sum is σ = 123290002080. Its totient is φ = 18787047552.

The previous prime is 50881587629. The next prime is 50881587649. The reversal of 50881587640 is 4678518805.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50881587649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48924084 + ... + 48925123.

It is an arithmetic number, because the mean of its divisors is an integer number (3852812565).

Almost surely, 2^50881587640 is an apocalyptic number.

It is an amenable number.

50881587640 is an abundant number, since it is smaller than the sum of its proper divisors (72408414440).

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

50881587640 is a wasteful number, since it uses less digits than its factorization.

50881587640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97849231 (or 97849227 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 50881587640 in words is "fifty billion, eight hundred eighty-one million, five hundred eighty-seven thousand, six hundred forty".