225616210 has 8 divisors (see below), whose sum is σ = 406109196. Its totient is φ = 90246480.

The previous prime is 225616207. The next prime is 225616217. The reversal of 225616210 is 12616522.

It can be written as a sum of positive squares in 2 ways, for example, as 222278281 + 3337929 = 14909^2 + 1827^2 .

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

It is not an unprimeable number, because it can be changed into a prime (225616217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11280801 + ... + 11280820.

Almost surely, 2^225616210 is an apocalyptic number.

225616210 is a deficient number, since it is larger than the sum of its proper divisors (180492986).

225616210 is a wasteful number, since it uses less digits than its factorization.

225616210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561628.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 225616210 is about 15020.5262890486. The cubic root of 225616210 is about 608.7749399134.

The spelling of 225616210 in words is "two hundred twenty-five million, six hundred sixteen thousand, two hundred ten".