30675625 has 10 divisors (see below), whose sum is σ = 38333042. Its totient is φ = 24540000.

The previous prime is 30675587. The next prime is 30675637. The reversal of 30675625 is 52657603.

It can be written as a sum of positive squares in 5 ways, for example, as 11909401 + 18766224 = 3451^2 + 4332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30675625 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 23916 + ... + 25165.

Almost surely, 2^30675625 is an apocalyptic number.

It is an amenable number.

30675625 is a deficient number, since it is larger than the sum of its proper divisors (7657417).

30675625 is an frugal number, since it uses more digits than its factorization.

30675625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49101 (or 49086 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 30675625 is about 5538.5580253348. The cubic root of 30675625 is about 313.0385380592.

The spelling of 30675625 in words is "thirty million, six hundred seventy-five thousand, six hundred twenty-five".