304500225 has 24 divisors (see below), whose sum is σ = 503940960. Its totient is φ = 162238720.

The previous prime is 304500221. The next prime is 304500233. The reversal of 304500225 is 522005403.

It is not a de Polignac number, because 304500225 - 2² = 304500221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304500221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141961 + ... + 144089.

It is an arithmetic number, because the mean of its divisors is an integer number (20997540).

Almost surely, 2^304500225 is an apocalyptic number.

It is an amenable number.

304500225 is a deficient number, since it is larger than the sum of its proper divisors (199440735).

304500225 is a wasteful number, since it uses less digits than its factorization.

304500225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 304500225 is about 17449.9348136318. The cubic root of 304500225 is about 672.7636827998.

Adding to 304500225 its reverse (522005403), we get a palindrome (826505628).

The spelling of 304500225 in words is "three hundred four million, five hundred thousand, two hundred twenty-five".