225622 has 8 divisors (see below), whose sum is σ = 342216. Its totient is φ = 111552.

The previous prime is 225619. The next prime is 225629. The reversal of 225622 is 226522.

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

It is a self number, because there is not a number n which added to its sum of digits gives 225622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225629) 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, 388 + ... + 775.

It is an arithmetic number, because the mean of its divisors is an integer number (42777).

2²²⁵⁶²² is an apocalyptic number.

225622 is the 388-th pentagonal number.

225622 is a deficient number, since it is larger than the sum of its proper divisors (116594).

225622 is a wasteful number, since it uses less digits than its factorization.

225622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262.

The product of its digits is 480, while the sum is 19.

The square root of 225622 is about 474.9968420948. The cubic root of 225622 is about 60.8780147543.

Subtracting 225622 from its reverse (226522), we obtain a square (900 = 30²).

It can be divided in two parts, 2256 and 22, that added together give a triangular number (2278 = T₆₇).

The spelling of 225622 in words is "two hundred twenty-five thousand, six hundred twenty-two".