525172685 has 12 divisors (see below), whose sum is σ = 658802172. Its totient is φ = 401869248.

The previous prime is 525172679. The next prime is 525172759. The reversal of 525172685 is 586271525.

It can be written as a sum of positive squares in 2 ways, for example, as 371487076 + 153685609 = 19274^2 + 12397^2 .

It is not a de Polignac number, because 525172685 - 2⁶ = 525172621 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96632 + ... + 101921.

It is an arithmetic number, because the mean of its divisors is an integer number (54900181).

Almost surely, 2^525172685 is an apocalyptic number.

It is an amenable number.

525172685 is a deficient number, since it is larger than the sum of its proper divisors (133629487).

525172685 is a wasteful number, since it uses less digits than its factorization.

525172685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198604 (or 198581 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 525172685 is about 22916.6464605972. The cubic root of 525172685 is about 806.8027624991.

The spelling of 525172685 in words is "five hundred twenty-five million, one hundred seventy-two thousand, six hundred eighty-five".