18425065 has 8 divisors (see below), whose sum is σ = 22165128. Its totient is φ = 14703360.

The previous prime is 18425039. The next prime is 18425083. The reversal of 18425065 is 56052481.

It can be written as a sum of positive squares in 4 ways, for example, as 549081 + 17875984 = 741^2 + 4228^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18425065 - 2⁷ = 18424937 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2272 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (2770641).

Almost surely, 2^18425065 is an apocalyptic number.

It is an amenable number.

18425065 is a deficient number, since it is larger than the sum of its proper divisors (3740063).

18425065 is an equidigital number, since it uses as much as digits as its factorization.

18425065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 18425065 is about 4292.4427777199. The cubic root of 18425065 is about 264.1210466101.

The spelling of 18425065 in words is "eighteen million, four hundred twenty-five thousand, sixty-five".