50331240564 has 48 divisors (see below), whose sum is σ = 128665817280. Its totient is φ = 15186423040.

The previous prime is 50331240539. The next prime is 50331240613. The reversal of 50331240564 is 46504213305.

It is a super-2 number, since 2×50331240564² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787479 + ... + 848990.

It is an arithmetic number, because the mean of its divisors is an integer number (2680537860).

Almost surely, 2^50331240564 is an apocalyptic number.

It is an amenable number.

50331240564 is an abundant number, since it is smaller than the sum of its proper divisors (78334576716).

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

50331240564 is a wasteful number, since it uses less digits than its factorization.

50331240564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636720 (or 1636718 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 50331240564 its reverse (46504213305), we get a palindrome (96835453869).

The spelling of 50331240564 in words is "fifty billion, three hundred thirty-one million, two hundred forty thousand, five hundred sixty-four".