30664425 has 72 divisors (see below), whose sum is σ = 58051840. Its totient is φ = 14256000.

The previous prime is 30664411. The next prime is 30664427. The reversal of 30664425 is 52446603.

It is not a de Polignac number, because 30664425 - 2⁴ = 30664409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30664392 and 30664401.

It is not an unprimeable number, because it can be changed into a prime (30664427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 281271 + ... + 281379.

Almost surely, 2^30664425 is an apocalyptic number.

It is an amenable number.

30664425 is a deficient number, since it is larger than the sum of its proper divisors (27387415).

30664425 is a wasteful number, since it uses less digits than its factorization.

30664425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 30664425 is about 5537.5468395310. The cubic root of 30664425 is about 313.0004355113. Note that the first 3 decimals are identical.

The spelling of 30664425 in words is "thirty million, six hundred sixty-four thousand, four hundred twenty-five".