225184217 has 16 divisors (see below), whose sum is σ = 241428480. Its totient is φ = 209563200.

The previous prime is 225184189. The next prime is 225184231. The reversal of 225184217 is 712481522.

225184217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 225184217 - 2¹⁸ = 224922073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225184117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415967 + ... + 416507.

It is an arithmetic number, because the mean of its divisors is an integer number (15089280).

Almost surely, 2^225184217 is an apocalyptic number.

It is an amenable number.

225184217 is a deficient number, since it is larger than the sum of its proper divisors (16244263).

225184217 is a wasteful number, since it uses less digits than its factorization.

225184217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 8960, while the sum is 32.

The square root of 225184217 is about 15006.1393102956. The cubic root of 225184217 is about 608.3861461290.

It can be divided in two parts, 2251 and 84217, that added together give a palindrome (86468).

The spelling of 225184217 in words is "two hundred twenty-five million, one hundred eighty-four thousand, two hundred seventeen".