225522017 has 24 divisors (see below), whose sum is σ = 280573440. Its totient is φ = 177431040.

The previous prime is 225521987. The next prime is 225522029. The reversal of 225522017 is 710225522.

It is not a de Polignac number, because 225522017 - 2⁶ = 225521953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225522097) 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 23 ways as a sum of consecutive naturals, for example, 81584 + ... + 84302.

It is an arithmetic number, because the mean of its divisors is an integer number (11690560).

Almost surely, 2^225522017 is an apocalyptic number.

It is an amenable number.

225522017 is a deficient number, since it is larger than the sum of its proper divisors (55051423).

225522017 is a wasteful number, since it uses less digits than its factorization.

225522017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 225522017 is about 15017.3904857002. The cubic root of 225522017 is about 608.6902085315.

Adding to 225522017 its reverse (710225522), we get a palindrome (935747539).

The spelling of 225522017 in words is "two hundred twenty-five million, five hundred twenty-two thousand, seventeen".