305424225 has 36 divisors (see below), whose sum is σ = 548133196. Its totient is φ = 162570240.

The previous prime is 305424167. The next prime is 305424247. The reversal of 305424225 is 522424503.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 467856 + 304956369 = 684^2 + 17463^2 .

It is not a de Polignac number, because 305424225 - 2²³ = 297035617 is a prime.

It is a Duffinian 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 35 ways as a sum of consecutive naturals, for example, 150417 + ... + 152433.

Almost surely, 2^305424225 is an apocalyptic number.

It is an amenable number.

305424225 is a deficient number, since it is larger than the sum of its proper divisors (242708971).

305424225 is a wasteful number, since it uses less digits than its factorization.

305424225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 2698 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 305424225 is about 17476.3905026181. The cubic root of 305424225 is about 673.4434917363.

Adding to 305424225 its reverse (522424503), we get a palindrome (827848728).

The spelling of 305424225 in words is "three hundred five million, four hundred twenty-four thousand, two hundred twenty-five".