52520820744 has 192 divisors, whose sum is σ = 156858716160. Its totient is φ = 14339306880.

The previous prime is 52520820733. The next prime is 52520820757. The reversal of 52520820744 is 44702802525.

It is a super-2 number, since 2×52520820744² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171077439 + ... + 171077745.

It is an arithmetic number, because the mean of its divisors is an integer number (816972480).

Almost surely, 2^52520820744 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 52520820744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78429358080).

52520820744 is an abundant number, since it is smaller than the sum of its proper divisors (104337895416).

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

52520820744 is a wasteful number, since it uses less digits than its factorization.

52520820744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 39.

The spelling of 52520820744 in words is "fifty-two billion, five hundred twenty million, eight hundred twenty thousand, seven hundred forty-four".