225722 has 16 divisors (see below), whose sum is σ = 404352. Its totient is φ = 92400.

The previous prime is 225721. The next prime is 225733. The reversal of 225722 is 227522.

225722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 225694 and 225703.

It is not an unprimeable number, because it can be changed into a prime (225721) 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 7 ways as a sum of consecutive naturals, for example, 29 + ... + 672.

It is an arithmetic number, because the mean of its divisors is an integer number (25272).

2²²⁵⁷²² is an apocalyptic number.

225722 is a deficient number, since it is larger than the sum of its proper divisors (178630).

225722 is a wasteful number, since it uses less digits than its factorization.

225722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733.

The product of its digits is 560, while the sum is 20.

The square root of 225722 is about 475.1020942913. The cubic root of 225722 is about 60.8870075273.

The spelling of 225722 in words is "two hundred twenty-five thousand, seven hundred twenty-two".