18050003 has 2 divisors, whose sum is σ = 18050004. Its totient is φ = 18050002.

The previous prime is 18049991. The next prime is 18050027. The reversal of 18050003 is 30005081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18050003 - 2⁴ = 18049987 is a prime.

It is not a weakly prime, because it can be changed into another prime (18050033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9025001 + 9025002.

It is an arithmetic number, because the mean of its divisors is an integer number (9025002).

Almost surely, 2^18050003 is an apocalyptic number.

18050003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18050003 is an equidigital number, since it uses as much as digits as its factorization.

18050003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 18050003 is about 4248.5295103130. The cubic root of 18050003 is about 262.3165908536.

Adding to 18050003 its reverse (30005081), we get a palindrome (48055084).

The spelling of 18050003 in words is "eighteen million, fifty thousand, three".