225637273 has 2 divisors, whose sum is σ = 225637274. Its totient is φ = 225637272.

The previous prime is 225637267. The next prime is 225637301. The reversal of 225637273 is 372736522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172449424 + 53187849 = 13132^2 + 7293^2 .

It is a cyclic number.

It is not a de Polignac number, because 225637273 - 2²⁵ = 192082841 is a prime.

It is not a weakly prime, because it can be changed into another prime (225637253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112818636 + 112818637.

It is an arithmetic number, because the mean of its divisors is an integer number (112818637).

Almost surely, 2^225637273 is an apocalyptic number.

It is an amenable number.

225637273 is a deficient number, since it is larger than the sum of its proper divisors (1).

225637273 is an equidigital number, since it uses as much as digits as its factorization.

225637273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 37.

The square root of 225637273 is about 15021.2274132309. The cubic root of 225637273 is about 608.7938839239.

The spelling of 225637273 in words is "two hundred twenty-five million, six hundred thirty-seven thousand, two hundred seventy-three".