30106025 has 12 divisors (see below), whose sum is σ = 37665372. Its totient is φ = 23869440.

The previous prime is 30105967. The next prime is 30106039. The reversal of 30106025 is 52060103.

It can be written as a sum of positive squares in 6 ways, for example, as 13808656 + 16297369 = 3716^2 + 4037^2 .

It is not a de Polignac number, because 30106025 - 2⁸ = 30105769 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 = 30105994 and 30106012.

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, 2504 + ... + 8153.

It is an arithmetic number, because the mean of its divisors is an integer number (3138781).

Almost surely, 2^30106025 is an apocalyptic number.

It is an amenable number.

30106025 is a deficient number, since it is larger than the sum of its proper divisors (7559347).

30106025 is a wasteful number, since it uses less digits than its factorization.

30106025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780 (or 10775 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30106025 is about 5486.8957526091. The cubic root of 30106025 is about 311.0888694653.

Adding to 30106025 its reverse (52060103), we get a palindrome (82166128).

The spelling of 30106025 in words is "thirty million, one hundred six thousand, twenty-five".