317718232225 has 27 divisors (see below), whose sum is σ = 399300521907. Its totient is φ = 250781322480.

The previous prime is 317718232217. The next prime is 317718232229. The reversal of 317718232225 is 522232817713.

The square root of 317718232225 is 563665.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114378563601 + 203339668624 = 338199^2 + 450932^2 .

It is not a de Polignac number, because 317718232225 - 2³ = 317718232217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317718232229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 222646962 + ... + 222648388.

Almost surely, 2^317718232225 is an apocalyptic number.

317718232225 is the 563665-th square number.

317718232225 is the 281833-rd centered octagonal number.

It is an amenable number.

317718232225 is a deficient number, since it is larger than the sum of its proper divisors (81582289682).

317718232225 is an frugal number, since it uses more digits than its factorization.

317718232225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022 (or 1511 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The spelling of 317718232225 in words is "three hundred seventeen billion, seven hundred eighteen million, two hundred thirty-two thousand, two hundred twenty-five".