30504625 has 16 divisors (see below), whose sum is σ = 38250576. Its totient is φ = 24288000.

The previous prime is 30504619. The next prime is 30504637. The reversal of 30504625 is 52640503.

It can be written as a sum of positive squares in 8 ways, for example, as 20493729 + 10010896 = 4527^2 + 3164^2 .

It is not a de Polignac number, because 30504625 - 2²¹ = 28407473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30504625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34185 + ... + 35065.

It is an arithmetic number, because the mean of its divisors is an integer number (2390661).

Almost surely, 2^30504625 is an apocalyptic number.

It is an amenable number.

30504625 is a deficient number, since it is larger than the sum of its proper divisors (7745951).

30504625 is an equidigital number, since it uses as much as digits as its factorization.

30504625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 30504625 is about 5523.0992205464. The cubic root of 30504625 is about 312.4557804098.

The spelling of 30504625 in words is "thirty million, five hundred four thousand, six hundred twenty-five".