225090389 has 2 divisors, whose sum is σ = 225090390. Its totient is φ = 225090388.

The previous prime is 225090263. The next prime is 225090401. The reversal of 225090389 is 983090522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195300625 + 29789764 = 13975^2 + 5458^2 .

It is a cyclic number.

It is not a de Polignac number, because 225090389 - 2²⁰ = 224041813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225095389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112545194 + 112545195.

It is an arithmetic number, because the mean of its divisors is an integer number (112545195).

Almost surely, 2^225090389 is an apocalyptic number.

It is an amenable number.

225090389 is a deficient number, since it is larger than the sum of its proper divisors (1).

225090389 is an equidigital number, since it uses as much as digits as its factorization.

225090389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 225090389 is about 15003.0126641285. The cubic root of 225090389 is about 608.3016351950.

The spelling of 225090389 in words is "two hundred twenty-five million, ninety thousand, three hundred eighty-nine".