225702216 has 48 divisors (see below), whose sum is σ = 643453200. Its totient is φ = 71273952.

The previous prime is 225702187. The next prime is 225702221. The reversal of 225702216 is 612207522.

It is a self number, because there is not a number n which added to its sum of digits gives 225702216.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81126 + ... + 83861.

It is an arithmetic number, because the mean of its divisors is an integer number (13405275).

Almost surely, 2^225702216 is an apocalyptic number.

It is an amenable number.

225702216 is an abundant number, since it is smaller than the sum of its proper divisors (417750984).

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

225702216 is a wasteful number, since it uses less digits than its factorization.

225702216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165018 (or 165011 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 225702216 is about 15023.3889652102. The cubic root of 225702216 is about 608.8522860784.

Adding to 225702216 its reverse (612207522), we get a palindrome (837909738).

The spelling of 225702216 in words is "two hundred twenty-five million, seven hundred two thousand, two hundred sixteen".