225539 has 4 divisors (see below), whose sum is σ = 238824. Its totient is φ = 212256.

The previous prime is 225529. The next prime is 225569. The reversal of 225539 is 935522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225539 - 2⁴ = 225523 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225539.

It is not an unprimeable number, because it can be changed into a prime (225509) 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, 6617 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (59706).

2²²⁵⁵³⁹ is an apocalyptic number.

225539 is a deficient number, since it is larger than the sum of its proper divisors (13285).

225539 is a wasteful number, since it uses less digits than its factorization.

225539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284.

The product of its digits is 2700, while the sum is 26.

The square root of 225539 is about 474.9094650562. The cubic root of 225539 is about 60.8705487345.

The spelling of 225539 in words is "two hundred twenty-five thousand, five hundred thirty-nine".