225356916 has 48 divisors (see below), whose sum is σ = 538804224. Its totient is φ = 73276896.

The previous prime is 225356909. The next prime is 225356939. The reversal of 225356916 is 619653522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260701 + ... + 261563.

It is an arithmetic number, because the mean of its divisors is an integer number (11225088).

Almost surely, 2^225356916 is an apocalyptic number.

It is an amenable number.

225356916 is an abundant number, since it is smaller than the sum of its proper divisors (313447308).

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

225356916 is a wasteful number, since it uses less digits than its factorization.

225356916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 1378 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 225356916 is about 15011.8924856262. The cubic root of 225356916 is about 608.5416348696.

The spelling of 225356916 in words is "two hundred twenty-five million, three hundred fifty-six thousand, nine hundred sixteen".