3215565717225 has 48 divisors (see below), whose sum is σ = 5444889576192. Its totient is φ = 1673591895360.

The previous prime is 3215565717181. The next prime is 3215565717263. The reversal of 3215565717225 is 5227175655123.

It is not a de Polignac number, because 3215565717225 - 2²⁹ = 3215028846313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3177742 + ... + 4065608.

It is an arithmetic number, because the mean of its divisors is an integer number (113435199504).

Almost surely, 2^{3215565717225} is an apocalyptic number.

It is an amenable number.

3215565717225 is a deficient number, since it is larger than the sum of its proper divisors (2229323858967).

3215565717225 is a wasteful number, since it uses less digits than its factorization.

3215565717225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889046 (or 889041 counting only the distinct ones).

The product of its digits is 4410000, while the sum is 51.

The spelling of 3215565717225 in words is "three trillion, two hundred fifteen billion, five hundred sixty-five million, seven hundred seventeen thousand, two hundred twenty-five".