305107225 has 24 divisors (see below), whose sum is σ = 399349440. Its totient is φ = 230598720.

The previous prime is 305107207. The next prime is 305107237. The reversal of 305107225 is 522701503.

It is not a de Polignac number, because 305107225 - 2⁷ = 305107097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 305107225.

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 23 ways as a sum of consecutive naturals, for example, 238287 + ... + 239563.

It is an arithmetic number, because the mean of its divisors is an integer number (16639560).

Almost surely, 2^305107225 is an apocalyptic number.

It is an amenable number.

305107225 is a deficient number, since it is larger than the sum of its proper divisors (94242215).

305107225 is a wasteful number, since it uses less digits than its factorization.

305107225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 305107225 is about 17467.3187696338. The cubic root of 305107225 is about 673.2104219386.

Adding to 305107225 its reverse (522701503), we get a palindrome (827808728).

The spelling of 305107225 in words is "three hundred five million, one hundred seven thousand, two hundred twenty-five".