225524 has 12 divisors (see below), whose sum is σ = 425124. Its totient is φ = 104064.

The previous prime is 225523. The next prime is 225527. The reversal of 225524 is 425522.

It can be written as a sum of positive squares in 2 ways, for example, as 13924 + 211600 = 118^2 + 460^2 .

It is a super-2 number, since 2×225524² = 101722149152, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 225496 and 225505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225523) 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, 2117 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (35427).

2²²⁵⁵²⁴ is an apocalyptic number.

It is an amenable number.

225524 is a deficient number, since it is larger than the sum of its proper divisors (199600).

225524 is a wasteful number, since it uses less digits than its factorization.

225524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354 (or 4352 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 225524 is about 474.8936723099. The cubic root of 225524 is about 60.8691992584.

The spelling of 225524 in words is "two hundred twenty-five thousand, five hundred twenty-four".