225493 has 2 divisors, whose sum is σ = 225494. Its totient is φ = 225492.

The previous prime is 225479. The next prime is 225499. The reversal of 225493 is 394522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223729 + 1764 = 473^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 225493 - 2⁵ = 225461 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 2¹⁶ + 4³ + 5⁶ + 9⁵ + 3⁹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112746 + 112747.

It is an arithmetic number, because the mean of its divisors is an integer number (112747).

2²²⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

225493 is a deficient number, since it is larger than the sum of its proper divisors (1).

225493 is an equidigital number, since it uses as much as digits as its factorization.

225493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 225493 is about 474.8610323031. The cubic root of 225493 is about 60.8664101515.

The spelling of 225493 in words is "two hundred twenty-five thousand, four hundred ninety-three".