225689717 has 8 divisors (see below), whose sum is σ = 246489312. Its totient is φ = 204937200.

The previous prime is 225689669. The next prime is 225689743. The reversal of 225689717 is 717986522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225689717 - 2¹⁴ = 225673333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225689747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (30811164).

Almost surely, 2^225689717 is an apocalyptic number.

It is an amenable number.

225689717 is a deficient number, since it is larger than the sum of its proper divisors (20799595).

225689717 is a wasteful number, since it uses less digits than its factorization.

225689717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23539.

The product of its digits is 423360, while the sum is 47.

The square root of 225689717 is about 15022.9729747477. The cubic root of 225689717 is about 608.8410468073.

The spelling of 225689717 in words is "two hundred twenty-five million, six hundred eighty-nine thousand, seven hundred seventeen".