225522189 has 6 divisors (see below), whose sum is σ = 325754286. Its totient is φ = 150348120.

The previous prime is 225522163. The next prime is 225522197. The reversal of 225522189 is 981225522.

225522189 is a `hidden beast` number, since 2 + 2 + 552 + 21 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 183142089 + 42380100 = 13533^2 + 6510^2 .

It is not a de Polignac number, because 225522189 - 2¹⁹ = 224997901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225522109) 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 5 ways as a sum of consecutive naturals, for example, 12529002 + ... + 12529019.

It is an arithmetic number, because the mean of its divisors is an integer number (54292381).

Almost surely, 2^225522189 is an apocalyptic number.

It is an amenable number.

225522189 is a deficient number, since it is larger than the sum of its proper divisors (100232097).

225522189 is a wasteful number, since it uses less digits than its factorization.

225522189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25058027 (or 25058024 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 225522189 is about 15017.3962123931. The cubic root of 225522189 is about 608.6903632758.

The spelling of 225522189 in words is "two hundred twenty-five million, five hundred twenty-two thousand, one hundred eighty-nine".