6538003 has 4 divisors (see below), whose sum is σ = 6822288. Its totient is φ = 6253720.

The previous prime is 6538001. The next prime is 6538009. The reversal of 6538003 is 3008356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6538003 - 2¹ = 6538001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6538001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 142108 + ... + 142153.

It is an arithmetic number, because the mean of its divisors is an integer number (1705572).

Almost surely, 2^6538003 is an apocalyptic number.

6538003 is a deficient number, since it is larger than the sum of its proper divisors (284285).

6538003 is a wasteful number, since it uses less digits than its factorization.

6538003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284284.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6538003 is about 2556.9518963015. The cubic root of 6538003 is about 186.9885605974.

The spelling of 6538003 in words is "six million, five hundred thirty-eight thousand, three".