18068625 has 24 divisors (see below), whose sum is σ = 32573736. Its totient is φ = 9636000.

The previous prime is 18068621. The next prime is 18068647. The reversal of 18068625 is 52686081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5022081 + 13046544 = 2241^2 + 3612^2 .

It is not a de Polignac number, because 18068625 - 2² = 18068621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18068625.

It is not an unprimeable number, because it can be changed into a prime (18068621) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6906 + ... + 9155.

It is an arithmetic number, because the mean of its divisors is an integer number (1357239).

Almost surely, 2^18068625 is an apocalyptic number.

18068625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18068625 is a deficient number, since it is larger than the sum of its proper divisors (14505111).

18068625 is a wasteful number, since it uses less digits than its factorization.

18068625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16082 (or 16069 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 18068625 is about 4250.7205271577. The cubic root of 18068625 is about 262.4067696130.

The spelling of 18068625 in words is "eighteen million, sixty-eight thousand, six hundred twenty-five".