30606225 has 24 divisors (see below), whose sum is σ = 54496512. Its totient is φ = 15067200.

The previous prime is 30606217. The next prime is 30606227. The reversal of 30606225 is 52260603.

It is not a de Polignac number, because 30606225 - 2³ = 30606217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30606195 and 30606204.

It is not an unprimeable number, because it can be changed into a prime (30606227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14721 + ... + 16670.

It is an arithmetic number, because the mean of its divisors is an integer number (2270688).

Almost surely, 2^30606225 is an apocalyptic number.

It is an amenable number.

30606225 is a deficient number, since it is larger than the sum of its proper divisors (23890287).

30606225 is a wasteful number, since it uses less digits than its factorization.

30606225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31417 (or 31412 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30606225 is about 5532.2893091378. The cubic root of 30606225 is about 312.8022888277.

Adding to 30606225 its reverse (52260603), we get a palindrome (82866828).

The spelling of 30606225 in words is "thirty million, six hundred six thousand, two hundred twenty-five".