52525305828 has 36 divisors (see below), whose sum is σ = 132831857340. Its totient is φ = 17500581696.

The previous prime is 52525305821. The next prime is 52525305869. The reversal of 52525305828 is 82850352525.

52525305828 is a `hidden beast` number, since 52 + 525 + 3 + 0 + 58 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46260266724 + 6265039104 = 215082^2 + 79152^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52525305821) 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 11 ways as a sum of consecutive naturals, for example, 245583 + ... + 406646.

It is an arithmetic number, because the mean of its divisors is an integer number (3689773815).

Almost surely, 2^52525305828 is an apocalyptic number.

It is an amenable number.

52525305828 is an abundant number, since it is smaller than the sum of its proper divisors (80306551512).

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

52525305828 is a wasteful number, since it uses less digits than its factorization.

52525305828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654476 (or 654471 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 52525305828 in words is "fifty-two billion, five hundred twenty-five million, three hundred five thousand, eight hundred twenty-eight".