30666425 has 12 divisors (see below), whose sum is σ = 38487120. Its totient is φ = 24235920.

The previous prime is 30666397. The next prime is 30666431. The reversal of 30666425 is 52466603.

It is not a de Polignac number, because 30666425 - 2¹² = 30662329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30666391 and 30666400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5315 + ... + 9464.

It is an arithmetic number, because the mean of its divisors is an integer number (3207260).

Almost surely, 2^30666425 is an apocalyptic number.

It is an amenable number.

30666425 is a deficient number, since it is larger than the sum of its proper divisors (7820695).

30666425 is a wasteful number, since it uses less digits than its factorization.

30666425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14872 (or 14867 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 30666425 is about 5537.7274219665. The cubic root of 30666425 is about 313.0072402181.

The spelling of 30666425 in words is "thirty million, six hundred sixty-six thousand, four hundred twenty-five".