18068425 has 6 divisors (see below), whose sum is σ = 22404878. Its totient is φ = 14454720.

The previous prime is 18068419. The next prime is 18068441. The reversal of 18068425 is 52486081.

It can be written as a sum of positive squares in 3 ways, for example, as 5621641 + 12446784 = 2371^2 + 3528^2 .

It is not a de Polignac number, because 18068425 - 2¹³ = 18060233 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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361344 + ... + 361393.

Almost surely, 2^18068425 is an apocalyptic number.

It is an amenable number.

18068425 is a deficient number, since it is larger than the sum of its proper divisors (4336453).

18068425 is an equidigital number, since it uses as much as digits as its factorization.

18068425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722747 (or 722742 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 18068425 is about 4250.6970016693. The cubic root of 18068425 is about 262.4058014237.

The spelling of 18068425 in words is "eighteen million, sixty-eight thousand, four hundred twenty-five".