225665606 has 8 divisors (see below), whose sum is σ = 338565864. Its totient is φ = 112810320.

The previous prime is 225665593. The next prime is 225665611. The reversal of 225665606 is 606566522.

225665606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225665606.

It is a congruent number.

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, 7661 + ... + 22583.

It is an arithmetic number, because the mean of its divisors is an integer number (42320733).

Almost surely, 2^225665606 is an apocalyptic number.

225665606 is a deficient number, since it is larger than the sum of its proper divisors (112900258).

225665606 is a wasteful number, since it uses less digits than its factorization.

225665606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22486.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 225665606 is about 15022.1704823238. The cubic root of 225665606 is about 608.8193646951.

The spelling of 225665606 in words is "two hundred twenty-five million, six hundred sixty-five thousand, six hundred six".