225287 has 2 divisors, whose sum is σ = 225288. Its totient is φ = 225286.

The previous prime is 225263. The next prime is 225289. The reversal of 225287 is 782522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225287 - 2⁶ = 225223 is a prime.

Together with 225289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225287.

It is not a weakly prime, because it can be changed into another prime (225289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112643 + 112644.

It is an arithmetic number, because the mean of its divisors is an integer number (112644).

2²²⁵²⁸⁷ is an apocalyptic number.

225287 is a deficient number, since it is larger than the sum of its proper divisors (1).

225287 is an equidigital number, since it uses as much as digits as its factorization.

225287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 26.

The square root of 225287 is about 474.6440771778. The cubic root of 225287 is about 60.8478695898.

It can be divided in two parts, 225 and 287, that added together give a 9-th power (512 = 2⁹).

The spelling of 225287 in words is "two hundred twenty-five thousand, two hundred eighty-seven".