525606525 has 54 divisors (see below), whose sum is σ = 954985070. Its totient is φ = 276336000.

The previous prime is 525606517. The next prime is 525606533.

525606525 is a `hidden beast` number, since 5 + 25 + 606 + 5 + 25 = 666.

525606525 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (525606517) and next prime (525606533).

It can be written as a sum of positive squares in 9 ways, for example, as 49406841 + 476199684 = 7029^2 + 21822^2 .

It is not a de Polignac number, because 525606525 - 2³ = 525606517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525606525.

It is a congruent number.

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, 2295111 + ... + 2295339.

Almost surely, 2^525606525 is an apocalyptic number.

It is an amenable number.

525606525 is a deficient number, since it is larger than the sum of its proper divisors (429378545).

525606525 is a wasteful number, since it uses less digits than its factorization.

525606525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 525606525 is about 22926.1101148887. The cubic root of 525606525 is about 807.0248652989.

Adding to 525606525 its product of nonzero digits (90000), we get a palindrome (525696525).

The spelling of 525606525 in words is "five hundred twenty-five million, six hundred six thousand, five hundred twenty-five".