225661215317 has 8 divisors (see below), whose sum is σ = 225964380096. Its totient is φ = 225358185312.

The previous prime is 225661215313. The next prime is 225661215331. The reversal of 225661215317 is 713512166522.

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 225661215317 - 2² = 225661215313 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 (225661215313) 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, 3573338 + ... + 3635940.

It is an arithmetic number, because the mean of its divisors is an integer number (28245547512).

Almost surely, 2^225661215317 is an apocalyptic number.

It is an amenable number.

225661215317 is a deficient number, since it is larger than the sum of its proper divisors (303164779).

225661215317 is an equidigital number, since it uses as much as digits as its factorization.

225661215317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67387.

The product of its digits is 151200, while the sum is 41.

The spelling of 225661215317 in words is "two hundred twenty-five billion, six hundred sixty-one million, two hundred fifteen thousand, three hundred seventeen".