225599 has 4 divisors (see below), whose sum is σ = 246120. Its totient is φ = 205080.

The previous prime is 225583. The next prime is 225601. The reversal of 225599 is 995522.

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 225599 - 2⁴ = 225583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

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, 10244 + ... + 10265.

It is an arithmetic number, because the mean of its divisors is an integer number (61530).

2²²⁵⁵⁹⁹ is an apocalyptic number.

225599 is a deficient number, since it is larger than the sum of its proper divisors (20521).

225599 is a wasteful number, since it uses less digits than its factorization.

225599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520.

The product of its digits is 8100, while the sum is 32.

The square root of 225599 is about 474.9726307904. The cubic root of 225599 is about 60.8759460406.

The spelling of 225599 in words is "two hundred twenty-five thousand, five hundred ninety-nine".