65003 has 2 divisors, whose sum is σ = 65004. Its totient is φ = 65002.

The previous prime is 64997. The next prime is 65011. The reversal of 65003 is 30056.

It is a happy number.

65003 is nontrivially palindromic in base 14.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65003 - 2⁸ = 64747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65033) by changing a digit.

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 as a sum of consecutive naturals, namely, 32501 + 32502.

It is an arithmetic number, because the mean of its divisors is an integer number (32502).

2⁶⁵⁰⁰³ is an apocalyptic number.

65003 is a deficient number, since it is larger than the sum of its proper divisors (1).

65003 is an equidigital number, since it uses as much as digits as its factorization.

65003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 65003 is about 254.9568590958. The cubic root of 65003 is about 40.2078761496.

Adding to 65003 its reverse (30056), we get a palindrome (95059).

The spelling of 65003 in words is "sixty-five thousand, three".