225596500 has 48 divisors (see below), whose sum is σ = 518656320. Its totient is φ = 85485600.

The previous prime is 225596491. The next prime is 225596513. The reversal of 225596500 is 5695522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2374 + ... + 21373.

It is an arithmetic number, because the mean of its divisors is an integer number (10805340).

Almost surely, 2^225596500 is an apocalyptic number.

225596500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225596500 is an abundant number, since it is smaller than the sum of its proper divisors (293059820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225596500 is a wasteful number, since it uses less digits than its factorization.

225596500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23785 (or 23773 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 225596500 is about 15019.8701725414. The cubic root of 225596500 is about 608.7572117199.

The spelling of 225596500 in words is "two hundred twenty-five million, five hundred ninety-six thousand, five hundred".