525444525 has 54 divisors (see below), whose sum is σ = 993423210. Its totient is φ = 265446720.

The previous prime is 525444523. The next prime is 525444527.

525444525 is a `hidden beast` number, since 52 + 544 + 45 + 25 = 666.

525444525 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (525444523) and next prime (525444527).

It can be written as a sum of positive squares in 3 ways, for example, as 393129 + 525051396 = 627^2 + 22914^2 .

It is not a de Polignac number, because 525444525 - 2¹ = 525444523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525444525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525444523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 77991 + ... + 84459.

Almost surely, 2^525444525 is an apocalyptic number.

It is an amenable number.

525444525 is a deficient number, since it is larger than the sum of its proper divisors (467978685).

525444525 is a wasteful number, since it uses less digits than its factorization.

525444525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523 (or 6496 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 525444525 is about 22922.5767530616. The cubic root of 525444525 is about 806.9419442949.

The spelling of 525444525 in words is "five hundred twenty-five million, four hundred forty-four thousand, five hundred twenty-five".