50515232144 has 20 divisors (see below), whose sum is σ = 105401975196. Its totient is φ = 23314722432.

The previous prime is 50515232137. The next prime is 50515232149. The reversal of 50515232144 is 44123251505.

It can be written as a sum of positive squares in 2 ways, for example, as 20703756544 + 29811475600 = 143888^2 + 172660^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50515232144.

It is not an unprimeable number, because it can be changed into a prime (50515232149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121430639 + ... + 121431054.

Almost surely, 2^50515232144 is an apocalyptic number.

It is an amenable number.

50515232144 is an abundant number, since it is smaller than the sum of its proper divisors (54886743052).

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

50515232144 is a wasteful number, since it uses less digits than its factorization.

50515232144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242861714 (or 242861708 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 50515232144 its reverse (44123251505), we get a palindrome (94638483649).

The spelling of 50515232144 in words is "fifty billion, five hundred fifteen million, two hundred thirty-two thousand, one hundred forty-four".