225206 has 4 divisors (see below), whose sum is σ = 337812. Its totient is φ = 112602.

The previous prime is 225167. The next prime is 225217. The reversal of 225206 is 602522.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56300 + ... + 56303.

It is an arithmetic number, because the mean of its divisors is an integer number (84453).

2²²⁵²⁰⁶ is an apocalyptic number.

225206 is a deficient number, since it is larger than the sum of its proper divisors (112606).

225206 is a wasteful number, since it uses less digits than its factorization.

225206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112605.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 225206 is about 474.5587424124. The cubic root of 225206 is about 60.8405762732.

Adding to 225206 its reverse (602522), we get a palindrome (827728).

The spelling of 225206 in words is "two hundred twenty-five thousand, two hundred six".