6650003 has 2 divisors, whose sum is σ = 6650004. Its totient is φ = 6650002.

The previous prime is 6649999. The next prime is 6650011. The reversal of 6650003 is 3000566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6650003 - 2² = 6649999 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6650093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325001 + 3325002.

It is an arithmetic number, because the mean of its divisors is an integer number (3325002).

Almost surely, 2^6650003 is an apocalyptic number.

6650003 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650003 is an equidigital number, since it uses as much as digits as its factorization.

6650003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 6650003 is about 2578.7599733205. The cubic root of 6650003 is about 188.0502638350.

Adding to 6650003 its reverse (3000566), we get a palindrome (9650569).

The spelling of 6650003 in words is "six million, six hundred fifty thousand, three".