225893 has 4 divisors (see below), whose sum is σ = 226860. Its totient is φ = 224928.

The previous prime is 225889. The next prime is 225919. The reversal of 225893 is 398522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 398522 = 2 ⋅199261.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 134689 = 302^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 225893 - 2² = 225889 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 2⁸ + 8⁵ + 5⁶ + 9² + 3¹¹ .

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (56715).

2²²⁵⁸⁹³ is an apocalyptic number.

It is an amenable number.

225893 is a deficient number, since it is larger than the sum of its proper divisors (967).

225893 is an equidigital number, since it uses as much as digits as its factorization.

225893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its digits is 4320, while the sum is 29.

The square root of 225893 is about 475.2820215409. The cubic root of 225893 is about 60.9023790170.

The spelling of 225893 in words is "two hundred twenty-five thousand, eight hundred ninety-three".