525258585 has 48 divisors (see below), whose sum is σ = 964913040. Its totient is φ = 263854080.

The previous prime is 525258583. The next prime is 525258593. The reversal of 525258585 is 585852525.

It can be written as a sum of positive squares in 8 ways, for example, as 69696 + 525188889 = 264^2 + 22917^2 .

It is not a de Polignac number, because 525258585 - 2¹ = 525258583 is a prime.

It is a super-2 number, since 2×525258585² = 551793162232404450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 525258585.

It is not an unprimeable number, because it can be changed into a prime (525258583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48597 + ... + 58413.

It is an arithmetic number, because the mean of its divisors is an integer number (20102355).

Almost surely, 2^525258585 is an apocalyptic number.

It is an amenable number.

525258585 is a deficient number, since it is larger than the sum of its proper divisors (439654455).

525258585 is a wasteful number, since it uses less digits than its factorization.

525258585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9895 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

The square root of 525258585 is about 22918.5205674363. The cubic root of 525258585 is about 806.8467483988.

The spelling of 525258585 in words is "five hundred twenty-five million, two hundred fifty-eight thousand, five hundred eighty-five".