528825231 has 12 divisors (see below), whose sum is σ = 833300520. Its totient is φ = 320500080.

The previous prime is 528825169. The next prime is 528825263. The reversal of 528825231 is 132528825.

528825231 is a `hidden beast` number, since 52 + 8 + 82 + 523 + 1 = 666.

It is not a de Polignac number, because 528825231 - 2⁹ = 528824719 is a prime.

It is a super-2 number, since 2×528825231² = 559312249884406722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528825281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2670736 + ... + 2670933.

It is an arithmetic number, because the mean of its divisors is an integer number (69441710).

Almost surely, 2^528825231 is an apocalyptic number.

528825231 is a deficient number, since it is larger than the sum of its proper divisors (304475289).

528825231 is a wasteful number, since it uses less digits than its factorization.

528825231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341686 (or 5341683 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 528825231 is about 22996.2003600595. The cubic root of 528825231 is about 808.6688653123.

The spelling of 528825231 in words is "five hundred twenty-eight million, eight hundred twenty-five thousand, two hundred thirty-one".