225572 has 6 divisors (see below), whose sum is σ = 394758. Its totient is φ = 112784.

The previous prime is 225569. The next prime is 225581. The reversal of 225572 is 275522.

It can be written as a sum of positive squares in only one way, i.e., 179776 + 45796 = 424^2 + 214^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28193 + ... + 28200.

It is an arithmetic number, because the mean of its divisors is an integer number (65793).

2²²⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

225572 is a deficient number, since it is larger than the sum of its proper divisors (169186).

225572 is a wasteful number, since it uses less digits than its factorization.

225572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56397 (or 56395 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 225572 is about 474.9442072497. The cubic root of 225572 is about 60.8735173713.

It can be divided in two parts, 225 and 572, that added together give a palindrome (797).

The spelling of 225572 in words is "two hundred twenty-five thousand, five hundred seventy-two".