225853 has 4 divisors (see below), whose sum is σ = 237760. Its totient is φ = 213948.

The previous prime is 225839. The next prime is 225859. The reversal of 225853 is 358522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358522 = 2 ⋅179261.

It is a cyclic number.

It is not a de Polignac number, because 225853 - 2⁵ = 225821 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2⁸ + 8⁵ + 5² + 5⁶ + 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 (225859) 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 in 3 ways as a sum of consecutive naturals, for example, 5925 + ... + 5962.

It is an arithmetic number, because the mean of its divisors is an integer number (59440).

2²²⁵⁸⁵³ is an apocalyptic number.

It is an amenable number.

225853 is a deficient number, since it is larger than the sum of its proper divisors (11907).

225853 is a wasteful number, since it uses less digits than its factorization.

225853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11906.

The product of its digits is 2400, while the sum is 25.

The square root of 225853 is about 475.2399393990. The cubic root of 225853 is about 60.8987840421.

The spelling of 225853 in words is "two hundred twenty-five thousand, eight hundred fifty-three".