30617225 has 12 divisors (see below), whose sum is σ = 38068620. Its totient is φ = 24427200.

The previous prime is 30617207. The next prime is 30617233. The reversal of 30617225 is 52271603.

It can be written as a sum of positive squares in 6 ways, for example, as 2569609 + 28047616 = 1603^2 + 5296^2 .

It is not a de Polignac number, because 30617225 - 2⁸ = 30616969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30617194 and 30617203.

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, 9071 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (3172385).

Almost surely, 2^30617225 is an apocalyptic number.

It is an amenable number.

30617225 is a deficient number, since it is larger than the sum of its proper divisors (7451395).

30617225 is a wasteful number, since it uses less digits than its factorization.

30617225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30617225 is about 5533.2833833087. The cubic root of 30617225 is about 312.8397584715.

Adding to 30617225 its reverse (52271603), we get a palindrome (82888828).

The spelling of 30617225 in words is "thirty million, six hundred seventeen thousand, two hundred twenty-five".