304256225 has 48 divisors (see below), whose sum is σ = 491718528. Its totient is φ = 181232640.

The previous prime is 304256219. The next prime is 304256233. The reversal of 304256225 is 522652403.

It is not a de Polignac number, because 304256225 - 2²⁴ = 287479009 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 34742 + ... + 42608.

It is an arithmetic number, because the mean of its divisors is an integer number (10244136).

Almost surely, 2^304256225 is an apocalyptic number.

304256225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

304256225 is a deficient number, since it is larger than the sum of its proper divisors (187462303).

304256225 is a wasteful number, since it uses less digits than its factorization.

304256225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914 (or 7909 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 304256225 is about 17442.9419823607. The cubic root of 304256225 is about 672.5839366770.

The spelling of 304256225 in words is "three hundred four million, two hundred fifty-six thousand, two hundred twenty-five".