525852225 has 36 divisors (see below), whose sum is σ = 972255232. Its totient is φ = 271404000.

The previous prime is 525852221. The next prime is 525852233. The reversal of 525852225 is 522258525.

525852225 is a `hidden beast` number, since 52 + 585 + 2 + 2 + 25 = 666.

It is not a de Polignac number, because 525852225 - 2² = 525852221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525852225.

It is not an unprimeable number, because it can be changed into a prime (525852221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30721 + ... + 44670.

Almost surely, 2^525852225 is an apocalyptic number.

It is an amenable number.

525852225 is a deficient number, since it is larger than the sum of its proper divisors (446403007).

525852225 is a wasteful number, since it uses less digits than its factorization.

525852225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75438 (or 75430 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 525852225 is about 22931.4680079580. The cubic root of 525852225 is about 807.1505963106.

The spelling of 525852225 in words is "five hundred twenty-five million, eight hundred fifty-two thousand, two hundred twenty-five".