317172525 has 24 divisors (see below), whose sum is σ = 525695520. Its totient is φ = 168738240.

The previous prime is 317172487. The next prime is 317172539. The reversal of 317172525 is 525271713.

It is a happy number.

It is not a de Polignac number, because 317172525 - 2⁹ = 317172013 is a prime.

It is a super-2 number, since 2×317172525² = 201196821229751250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 26379 + ... + 36471.

It is an arithmetic number, because the mean of its divisors is an integer number (21903980).

Almost surely, 2^317172525 is an apocalyptic number.

It is an amenable number.

317172525 is a deficient number, since it is larger than the sum of its proper divisors (208522995).

317172525 is a wasteful number, since it uses less digits than its factorization.

317172525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525 (or 10520 counting only the distinct ones).

The product of its digits is 14700, while the sum is 33.

The square root of 317172525 is about 17809.3381404251. The cubic root of 317172525 is about 681.9698683523.

The spelling of 317172525 in words is "three hundred seventeen million, one hundred seventy-two thousand, five hundred twenty-five".