30724625 has 16 divisors (see below), whose sum is σ = 38528256. Its totient is φ = 24462000.

The previous prime is 30724597. The next prime is 30724637. The reversal of 30724625 is 52642703.

It is not a de Polignac number, because 30724625 - 2¹⁴ = 30708241 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 33422 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (2408016).

Almost surely, 2^30724625 is an apocalyptic number.

It is an amenable number.

30724625 is a deficient number, since it is larger than the sum of its proper divisors (7803631).

30724625 is an equidigital number, since it uses as much as digits as its factorization.

30724625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 30724625 is about 5542.9797942984. The cubic root of 30724625 is about 313.2051277469.

The spelling of 30724625 in words is "thirty million, seven hundred twenty-four thousand, six hundred twenty-five".