30403625 has 16 divisors (see below), whose sum is σ = 43365504. Its totient is φ = 20847600.

The previous prime is 30403621. The next prime is 30403627. The reversal of 30403625 is 52630403.

It is not a de Polignac number, because 30403625 - 2² = 30403621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30403625.

It is not an unprimeable number, because it can be changed into a prime (30403621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16499 + ... + 18248.

It is an arithmetic number, because the mean of its divisors is an integer number (2710344).

Almost surely, 2^30403625 is an apocalyptic number.

30403625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30403625 is a deficient number, since it is larger than the sum of its proper divisors (12961879).

30403625 is an equidigital number, since it uses as much as digits as its factorization.

30403625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34769 (or 34759 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 30403625 is about 5513.9482224627. The cubic root of 30403625 is about 312.1105548656.

The spelling of 30403625 in words is "thirty million, four hundred three thousand, six hundred twenty-five".