225660515 has 8 divisors (see below), whose sum is σ = 277397568. Its totient is φ = 176125120.

The previous prime is 225660503. The next prime is 225660529. The reversal of 225660515 is 515066522.

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

It is not a de Polignac number, because 225660515 - 2⁶ = 225660451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550187 + ... + 550596.

It is an arithmetic number, because the mean of its divisors is an integer number (34674696).

Almost surely, 2^225660515 is an apocalyptic number.

225660515 is a deficient number, since it is larger than the sum of its proper divisors (51737053).

225660515 is a wasteful number, since it uses less digits than its factorization.

225660515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100829.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 225660515 is about 15022.0010318200. The cubic root of 225660515 is about 608.8147863535.

The spelling of 225660515 in words is "two hundred twenty-five million, six hundred sixty thousand, five hundred fifteen".