528489984825 has 54 divisors (see below), whose sum is σ = 1040460464862. Its totient is φ = 256237555200.

The previous prime is 528489984817. The next prime is 528489984917.

528489984825 is a `hidden beast` number, since 52 + 8 + 4 + 8 + 9 + 98 + 482 + 5 = 666.

528489984825 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 1557723024 + 526932261801 = 39468^2 + 725901^2 .

It is not a de Polignac number, because 528489984825 - 2³ = 528489984817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 9678744 + ... + 9733193.

Almost surely, 2^528489984825 is an apocalyptic number.

528489984825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

528489984825 is a deficient number, since it is larger than the sum of its proper divisors (511970480037).

528489984825 is a wasteful number, since it uses less digits than its factorization.

528489984825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19411975 (or 19411956 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 72.

The spelling of 528489984825 in words is "five hundred twenty-eight billion, four hundred eighty-nine million, nine hundred eighty-four thousand, eight hundred twenty-five".