225225516 has 12 divisors (see below), whose sum is σ = 525526232. Its totient is φ = 75075168.

The previous prime is 225225491. The next prime is 225225521. The reversal of 225225516 is 615522522.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9384385 + ... + 9384408.

Almost surely, 2^225225516 is an apocalyptic number.

It is an amenable number.

225225516 is an abundant number, since it is smaller than the sum of its proper divisors (300300716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225225516 is a wasteful number, since it uses less digits than its factorization.

225225516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18768800 (or 18768798 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 225225516 is about 15007.5153173335. The cubic root of 225225516 is about 608.4233367218.

The spelling of 225225516 in words is "two hundred twenty-five million, two hundred twenty-five thousand, five hundred sixteen".