525603640328 has 36 divisors (see below), whose sum is σ = 1067200570215. Its totient is φ = 242573992128.

The previous prime is 525603640271. The next prime is 525603640357. The reversal of 525603640328 is 823046306525.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 9967626244 + 515636014084 = 99838^2 + 718078^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=512642.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26647526 + ... + 26667242.

Almost surely, 2^525603640328 is an apocalyptic number.

It is an amenable number.

525603640328 is an abundant number, since it is smaller than the sum of its proper divisors (541596929887).

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

525603640328 is an frugal number, since it uses more digits than its factorization.

525603640328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39466 (or 19732 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 525603640328 in words is "five hundred twenty-five billion, six hundred three million, six hundred forty thousand, three hundred twenty-eight".