225452257 has 2 divisors, whose sum is σ = 225452258. Its totient is φ = 225452256.

The previous prime is 225452237. The next prime is 225452261. The reversal of 225452257 is 752254522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205951201 + 19501056 = 14351^2 + 4416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225452257 is a prime.

It is not a weakly prime, because it can be changed into another prime (225452237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112726128 + 112726129.

It is an arithmetic number, because the mean of its divisors is an integer number (112726129).

Almost surely, 2^225452257 is an apocalyptic number.

It is an amenable number.

225452257 is a deficient number, since it is larger than the sum of its proper divisors (1).

225452257 is an equidigital number, since it uses as much as digits as its factorization.

225452257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 34.

The square root of 225452257 is about 15015.0676655152. The cubic root of 225452257 is about 608.6274406645.

The spelling of 225452257 in words is "two hundred twenty-five million, four hundred fifty-two thousand, two hundred fifty-seven".