30330625 has 20 divisors (see below), whose sum is σ = 40827556. Its totient is φ = 22392000.

The previous prime is 30330571. The next prime is 30330647. The reversal of 30330625 is 52603303.

It can be written as a sum of positive squares in 10 ways, for example, as 27133681 + 3196944 = 5209^2 + 1788^2 .

It is not a de Polignac number, because 30330625 - 2⁷ = 30330497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30330596 and 30330605.

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 19 ways as a sum of consecutive naturals, for example, 6259 + ... + 9991.

Almost surely, 2^30330625 is an apocalyptic number.

It is an amenable number.

30330625 is a deficient number, since it is larger than the sum of its proper divisors (10496931).

30330625 is an equidigital number, since it uses as much as digits as its factorization.

30330625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3751 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 30330625 is about 5507.3246681125. The cubic root of 30330625 is about 311.8605591283.

Adding to 30330625 its reverse (52603303), we get a palindrome (82933928).

The spelling of 30330625 in words is "thirty million, three hundred thirty thousand, six hundred twenty-five".