225526 has 16 divisors (see below), whose sum is σ = 393120. Its totient is φ = 95040.

The previous prime is 225523. The next prime is 225527. The reversal of 225526 is 625522.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 225497 and 225506.

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 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, 1156 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2²²⁵⁵²⁶ is an apocalyptic number.

225526 is a deficient number, since it is larger than the sum of its proper divisors (167594).

225526 is a wasteful number, since it uses less digits than its factorization.

225526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 1200, while the sum is 22.

The square root of 225526 is about 474.8957780398. The cubic root of 225526 is about 60.8693791920.

The spelling of 225526 in words is "two hundred twenty-five thousand, five hundred twenty-six".