52820509028 has 72 divisors (see below), whose sum is σ = 112075052544. Its totient is φ = 21694176000.

The previous prime is 52820508959. The next prime is 52820509031. The reversal of 52820509028 is 82090502825.

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 23 ways as a sum of consecutive naturals, for example, 583628 + ... + 668028.

It is an arithmetic number, because the mean of its divisors is an integer number (1556597952).

Almost surely, 2^52820509028 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 52820509028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56037526272).

52820509028 is an abundant number, since it is smaller than the sum of its proper divisors (59254543516).

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

52820509028 is a wasteful number, since it uses less digits than its factorization.

52820509028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84553 (or 84544 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 52820509028 in words is "fifty-two billion, eight hundred twenty million, five hundred nine thousand, twenty-eight".