528505825 has 12 divisors (see below), whose sum is σ = 676488448. Its totient is φ = 409165200.

The previous prime is 528505811. The next prime is 528505841.

It is a happy number.

528505825 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 528505825 - 2⁷ = 528505697 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340197 + ... + 341746.

Almost surely, 2^528505825 is an apocalyptic number.

It is an amenable number.

528505825 is a deficient number, since it is larger than the sum of its proper divisors (147982623).

528505825 is a wasteful number, since it uses less digits than its factorization.

528505825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681984 (or 681979 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 528505825 is about 22989.2545551177. The cubic root of 528505825 is about 808.5060227874.

The spelling of 528505825 in words is "five hundred twenty-eight million, five hundred five thousand, eight hundred twenty-five".