225018089 has 2 divisors, whose sum is σ = 225018090. Its totient is φ = 225018088.

The previous prime is 225018071. The next prime is 225018091. The reversal of 225018089 is 980810522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 17081689 = 14420^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 225018089 - 2¹² = 225013993 is a prime.

It is a Sophie Germain prime.

Together with 225018091, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (225018589) 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 as a sum of consecutive naturals, namely, 112509044 + 112509045.

It is an arithmetic number, because the mean of its divisors is an integer number (112509045).

Almost surely, 2^225018089 is an apocalyptic number.

It is an amenable number.

225018089 is a deficient number, since it is larger than the sum of its proper divisors (1).

225018089 is an equidigital number, since it uses as much as digits as its factorization.

225018089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 225018089 is about 15000.6029545482. The cubic root of 225018089 is about 608.2364985208.

The spelling of 225018089 in words is "two hundred twenty-five million, eighteen thousand, eighty-nine".