225873449 has 2 divisors, whose sum is σ = 225873450. Its totient is φ = 225873448.

The previous prime is 225873379. The next prime is 225873457. The reversal of 225873449 is 944378522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163968025 + 61905424 = 12805^2 + 7868^2 .

It is a cyclic number.

It is not a de Polignac number, because 225873449 - 2²⁴ = 209096233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225813449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112936724 + 112936725.

It is an arithmetic number, because the mean of its divisors is an integer number (112936725).

Almost surely, 2^225873449 is an apocalyptic number.

It is an amenable number.

225873449 is a deficient number, since it is larger than the sum of its proper divisors (1).

225873449 is an equidigital number, since it uses as much as digits as its factorization.

225873449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 225873449 is about 15029.0867653361. The cubic root of 225873449 is about 609.0062193618.

The spelling of 225873449 in words is "two hundred twenty-five million, eight hundred seventy-three thousand, four hundred forty-nine".