225835665 has 32 divisors (see below), whose sum is σ = 395107200. Its totient is φ = 109240320.

The previous prime is 225835661. The next prime is 225835681. The reversal of 225835665 is 566538522.

It is not a de Polignac number, because 225835665 - 2² = 225835661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225835661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82641 + ... + 85329.

It is an arithmetic number, because the mean of its divisors is an integer number (12347100).

Almost surely, 2^225835665 is an apocalyptic number.

It is an amenable number.

225835665 is a deficient number, since it is larger than the sum of its proper divisors (169271535).

225835665 is a wasteful number, since it uses less digits than its factorization.

225835665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217.

The product of its digits is 432000, while the sum is 42.

The square root of 225835665 is about 15027.8296836236. The cubic root of 225835665 is about 608.9722593807.

The spelling of 225835665 in words is "two hundred twenty-five million, eight hundred thirty-five thousand, six hundred sixty-five".