30425025 has 12 divisors (see below), whose sum is σ = 50302832. Its totient is φ = 16226640.

The previous prime is 30424969. The next prime is 30425039. The reversal of 30425025 is 52052403.

It is not a de Polignac number, because 30425025 - 2⁸ = 30424769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30424992 and 30425010.

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, 202759 + ... + 202908.

Almost surely, 2^30425025 is an apocalyptic number.

It is an amenable number.

30425025 is a deficient number, since it is larger than the sum of its proper divisors (19877807).

30425025 is a wasteful number, since it uses less digits than its factorization.

30425025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405680 (or 405675 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30425025 is about 5515.8884143898. Note that the first 3 decimals coincide. The cubic root of 30425025 is about 312.1837654275.

Adding to 30425025 its reverse (52052403), we get a palindrome (82477428).

The spelling of 30425025 in words is "thirty million, four hundred twenty-five thousand, twenty-five".