51580295560 has 16 divisors (see below), whose sum is σ = 116055665100. Its totient is φ = 20632118208.

The previous prime is 51580295539. The next prime is 51580295563. The reversal of 51580295560 is 6559208515.

It can be written as a sum of positive squares in 2 ways, for example, as 42109502436 + 9470793124 = 205206^2 + 97318^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51580295560.

It is not an unprimeable number, because it can be changed into a prime (51580295563) 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, 644753655 + ... + 644753734.

Almost surely, 2^51580295560 is an apocalyptic number.

It is an amenable number.

51580295560 is an abundant number, since it is smaller than the sum of its proper divisors (64475369540).

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

51580295560 is a wasteful number, since it uses less digits than its factorization.

51580295560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289507400 (or 1289507396 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 46.

The spelling of 51580295560 in words is "fifty-one billion, five hundred eighty million, two hundred ninety-five thousand, five hundred sixty".