6542003 has 4 divisors (see below), whose sum is σ = 7045248. Its totient is φ = 6038760.

The previous prime is 6541999. The next prime is 6542021. The reversal of 6542003 is 3002456.

6542003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6542003 - 2² = 6541999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6542803) 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 in 3 ways as a sum of consecutive naturals, for example, 251603 + ... + 251628.

It is an arithmetic number, because the mean of its divisors is an integer number (1761312).

Almost surely, 2^6542003 is an apocalyptic number.

6542003 is a deficient number, since it is larger than the sum of its proper divisors (503245).

6542003 is a wasteful number, since it uses less digits than its factorization.

6542003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503244.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 6542003 is about 2557.7339580183. The cubic root of 6542003 is about 187.0266864981.

Adding to 6542003 its reverse (3002456), we get a palindrome (9544459).

The spelling of 6542003 in words is "six million, five hundred forty-two thousand, three".