308028025 has 6 divisors (see below), whose sum is σ = 381954782. Its totient is φ = 246422400.

The previous prime is 308027977. The next prime is 308028041. The reversal of 308028025 is 520820803.

It can be written as a sum of positive squares in 3 ways, for example, as 33396841 + 274631184 = 5779^2 + 16572^2 .

It is not a de Polignac number, because 308028025 - 2⁹ = 308027513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 308027984 and 308028002.

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 5 ways as a sum of consecutive naturals, for example, 6160536 + ... + 6160585.

Almost surely, 2^308028025 is an apocalyptic number.

It is an amenable number.

308028025 is a deficient number, since it is larger than the sum of its proper divisors (73926757).

308028025 is a wasteful number, since it uses less digits than its factorization.

308028025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321131 (or 12321126 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 308028025 is about 17550.7271929114. The cubic root of 308028025 is about 675.3518239062.

Adding to 308028025 its reverse (520820803), we get a palindrome (828848828).

The spelling of 308028025 in words is "three hundred eight million, twenty-eight thousand, twenty-five".