225508273 has 2 divisors, whose sum is σ = 225508274. Its totient is φ = 225508272.

The previous prime is 225508271. The next prime is 225508301. The reversal of 225508273 is 372805522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148279329 + 77228944 = 12177^2 + 8788^2 .

It is a cyclic number.

It is not a de Polignac number, because 225508273 - 2¹ = 225508271 is a prime.

Together with 225508271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (225508271) 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, 112754136 + 112754137.

It is an arithmetic number, because the mean of its divisors is an integer number (112754137).

Almost surely, 2^225508273 is an apocalyptic number.

It is an amenable number.

225508273 is a deficient number, since it is larger than the sum of its proper divisors (1).

225508273 is an equidigital number, since it uses as much as digits as its factorization.

225508273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 225508273 is about 15016.9328759238. The cubic root of 225508273 is about 608.6778431340.

The spelling of 225508273 in words is "two hundred twenty-five million, five hundred eight thousand, two hundred seventy-three".