305597225 has 12 divisors (see below), whose sum is σ = 391165440. Its totient is φ = 236590800.

The previous prime is 305597209. The next prime is 305597249. The reversal of 305597225 is 522795503.

It is not a de Polignac number, because 305597225 - 2⁴ = 305597209 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 196385 + ... + 197934.

It is an arithmetic number, because the mean of its divisors is an integer number (32597120).

Almost surely, 2^305597225 is an apocalyptic number.

It is an amenable number.

305597225 is a deficient number, since it is larger than the sum of its proper divisors (85568215).

305597225 is a wasteful number, since it uses less digits than its factorization.

305597225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394360 (or 394355 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 305597225 is about 17481.3393365611. The cubic root of 305597225 is about 673.5706195411.

The spelling of 305597225 in words is "three hundred five million, five hundred ninety-seven thousand, two hundred twenty-five".