225594289 has 2 divisors, whose sum is σ = 225594290. Its totient is φ = 225594288.

The previous prime is 225594269. The next prime is 225594319. The reversal of 225594289 is 982495522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184416400 + 41177889 = 13580^2 + 6417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225594289 is a prime.

It is not a weakly prime, because it can be changed into another prime (225594269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112797144 + 112797145.

It is an arithmetic number, because the mean of its divisors is an integer number (112797145).

Almost surely, 2^225594289 is an apocalyptic number.

It is an amenable number.

225594289 is a deficient number, since it is larger than the sum of its proper divisors (1).

225594289 is an equidigital number, since it uses as much as digits as its factorization.

225594289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 46.

The square root of 225594289 is about 15019.7965698607. The cubic root of 225594289 is about 608.7552229678.

The spelling of 225594289 in words is "two hundred twenty-five million, five hundred ninety-four thousand, two hundred eighty-nine".