18463625 has 8 divisors (see below), whose sum is σ = 23042760. Its totient is φ = 14770800.

The previous prime is 18463603. The next prime is 18463657. The reversal of 18463625 is 52636481.

It can be written as a sum of positive squares in 4 ways, for example, as 2271049 + 16192576 = 1507^2 + 4024^2 .

It is not a de Polignac number, because 18463625 - 2⁸ = 18463369 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 73730 + ... + 73979.

It is an arithmetic number, because the mean of its divisors is an integer number (2880345).

Almost surely, 2^18463625 is an apocalyptic number.

It is an amenable number.

18463625 is a deficient number, since it is larger than the sum of its proper divisors (4579135).

18463625 is an equidigital number, since it uses as much as digits as its factorization.

18463625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147724 (or 147714 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 18463625 is about 4296.9320450759. The cubic root of 18463625 is about 264.3051691825.

The spelling of 18463625 in words is "eighteen million, four hundred sixty-three thousand, six hundred twenty-five".