225597 has 8 divisors (see below), whose sum is σ = 303520. Its totient is φ = 149040.

The previous prime is 225583. The next prime is 225601. The reversal of 225597 is 795522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225597 - 2⁴ = 225581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225527) 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, 147 + ... + 687.

It is an arithmetic number, because the mean of its divisors is an integer number (37940).

2²²⁵⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

225597 is a deficient number, since it is larger than the sum of its proper divisors (77923).

225597 is a wasteful number, since it uses less digits than its factorization.

225597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683.

The product of its digits is 6300, while the sum is 30.

The square root of 225597 is about 474.9705254013. The cubic root of 225597 is about 60.8757661459.

The spelling of 225597 in words is "two hundred twenty-five thousand, five hundred ninety-seven".