52356528828 has 72 divisors (see below), whose sum is σ = 136563729120. Its totient is φ = 16902167040.

The previous prime is 52356528827. The next prime is 52356528859. The reversal of 52356528828 is 82882565325.

52356528828 is a `hidden beast` number, since 5 + 2 + 35 + 6 + 528 + 82 + 8 = 666.

It is a super-2 number, since 2×52356528828² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52356528827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72753 + ... + 331671.

It is an arithmetic number, because the mean of its divisors is an integer number (1896718460).

Almost surely, 2^52356528828 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 52356528828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68281864560).

52356528828 is an abundant number, since it is smaller than the sum of its proper divisors (84207200292).

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

52356528828 is a wasteful number, since it uses less digits than its factorization.

52356528828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259107 (or 259102 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 54.

The spelling of 52356528828 in words is "fifty-two billion, three hundred fifty-six million, five hundred twenty-eight thousand, eight hundred twenty-eight".