528680825 has 6 divisors (see below), whose sum is σ = 655564254. Its totient is φ = 422944640.

The previous prime is 528680797. The next prime is 528680837. The reversal of 528680825 is 528086825.

It can be written as a sum of positive squares in 3 ways, for example, as 14661241 + 514019584 = 3829^2 + 22672^2 .

It is not a de Polignac number, because 528680825 - 2²⁶ = 461571961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10573592 + ... + 10573641.

It is an arithmetic number, because the mean of its divisors is an integer number (109260709).

Almost surely, 2^528680825 is an apocalyptic number.

It is an amenable number.

528680825 is a deficient number, since it is larger than the sum of its proper divisors (126883429).

528680825 is a wasteful number, since it uses less digits than its factorization.

528680825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21147243 (or 21147238 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 528680825 is about 22993.0603661192. The cubic root of 528680825 is about 808.5952510315.

The spelling of 528680825 in words is "five hundred twenty-eight million, six hundred eighty thousand, eight hundred twenty-five".