6542005 has 16 divisors (see below), whose sum is σ = 8265600. Its totient is φ = 4961088.

The previous prime is 6541999. The next prime is 6542021. The reversal of 6542005 is 5002456.

It is a cyclic number.

It is not a de Polignac number, because 6542005 - 2⁵ = 6541973 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18571 + ... + 18919.

It is an arithmetic number, because the mean of its divisors is an integer number (516600).

Almost surely, 2^6542005 is an apocalyptic number.

It is an amenable number.

6542005 is a deficient number, since it is larger than the sum of its proper divisors (1723595).

6542005 is a wasteful number, since it uses less digits than its factorization.

6542005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 6542005 is about 2557.7343489894. The cubic root of 6542005 is about 187.0267055571.

The spelling of 6542005 in words is "six million, five hundred forty-two thousand, five".