225723 has 8 divisors (see below), whose sum is σ = 305728. Its totient is φ = 148104.

The previous prime is 225721. The next prime is 225733. The reversal of 225723 is 327522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225723 - 2¹ = 225721 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 225723.

It is not an unprimeable number, because it can be changed into a prime (225721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (38216).

2²²⁵⁷²³ is an apocalyptic number.

225723 is a deficient number, since it is larger than the sum of its proper divisors (80005).

225723 is a wasteful number, since it uses less digits than its factorization.

225723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 840, while the sum is 21.

The square root of 225723 is about 475.1031466955. The cubic root of 225723 is about 60.8870974416.

The spelling of 225723 in words is "two hundred twenty-five thousand, seven hundred twenty-three".