6540011 has 4 divisors (see below), whose sum is σ = 6568800. Its totient is φ = 6511224.

The previous prime is 6540007. The next prime is 6540013. The reversal of 6540011 is 1100456.

It is a happy number.

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 6540011 - 2² = 6540007 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6540013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14051 + ... + 14508.

It is an arithmetic number, because the mean of its divisors is an integer number (1642200).

Almost surely, 2^6540011 is an apocalyptic number.

6540011 is a deficient number, since it is larger than the sum of its proper divisors (28789).

6540011 is a wasteful number, since it uses less digits than its factorization.

6540011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28788.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 6540011 is about 2557.3445211782. The cubic root of 6540011 is about 187.0077017427.

Adding to 6540011 its reverse (1100456), we get a palindrome (7640467).

It can be divided in two parts, 65400 and 11, that multiplied together give a triangular number (719400 = T₁₁₉₉).

The spelling of 6540011 in words is "six million, five hundred forty thousand, eleven".