52561486334720 has 144 divisors (see below), whose sum is σ = 137381902543872. Its totient is φ = 19108375572480.

The previous prime is 52561486334681. The next prime is 52561486334737. The reversal of 52561486334720 is 2743368416525.

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, 54760049 + ... + 55711631.

It is an arithmetic number, because the mean of its divisors is an integer number (954040989888).

Almost surely, 2^{52561486334720} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52561486334720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68690951271936).

52561486334720 is an abundant number, since it is smaller than the sum of its proper divisors (84820416209152).

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

52561486334720 is a wasteful number, since it uses less digits than its factorization.

52561486334720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955538 (or 955524 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 52561486334720 in words is "fifty-two trillion, five hundred sixty-one billion, four hundred eighty-six million, three hundred thirty-four thousand, seven hundred twenty".