52017989056 has 84 divisors (see below), whose sum is σ = 113886554040. Its totient is φ = 23555699200.

The previous prime is 52017989017. The next prime is 52017989063. The reversal of 52017989056 is 65098971025.

It is a super-2 number, since 2×52017989056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52017988994 and 52017989012.

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 11 ways as a sum of consecutive naturals, for example, 2070651 + ... + 2095621.

It is an arithmetic number, because the mean of its divisors is an integer number (1355792310).

Almost surely, 2^52017989056 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 52017989056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56943277020).

52017989056 is an abundant number, since it is smaller than the sum of its proper divisors (61868564984).

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

52017989056 is a wasteful number, since it uses less digits than its factorization.

52017989056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25274 (or 25253 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 52017989056 in words is "fifty-two billion, seventeen million, nine hundred eighty-nine thousand, fifty-six".