225499 has 2 divisors, whose sum is σ = 225500. Its totient is φ = 225498.

The previous prime is 225493. The next prime is 225503. The reversal of 225499 is 994522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225499 - 2⁷ = 225371 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 225499.

It is not a weakly prime, because it can be changed into another prime (225493) 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, 112749 + 112750.

It is an arithmetic number, because the mean of its divisors is an integer number (112750).

2²²⁵⁴⁹⁹ is an apocalyptic number.

225499 is a deficient number, since it is larger than the sum of its proper divisors (1).

225499 is an equidigital number, since it uses as much as digits as its factorization.

225499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 225499 is about 474.8673498989. The cubic root of 225499 is about 60.8669499986.

The spelling of 225499 in words is "two hundred twenty-five thousand, four hundred ninety-nine".