225602817 has 16 divisors (see below), whose sum is σ = 329330880. Its totient is φ = 136236800.

The previous prime is 225602813. The next prime is 225602831. The reversal of 225602817 is 718206522.

It is a cyclic number.

It is not a de Polignac number, because 225602817 - 2² = 225602813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (225602813) 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 15 ways as a sum of consecutive naturals, for example, 2892 + ... + 21437.

It is an arithmetic number, because the mean of its divisors is an integer number (20583180).

Almost surely, 2^225602817 is an apocalyptic number.

It is an amenable number.

225602817 is a deficient number, since it is larger than the sum of its proper divisors (103728063).

225602817 is a wasteful number, since it uses less digits than its factorization.

225602817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24624.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 225602817 is about 15020.0804591720. The cubic root of 225602817 is about 608.7628936689.

The spelling of 225602817 in words is "two hundred twenty-five million, six hundred two thousand, eight hundred seventeen".