6551611 has 8 divisors (see below), whose sum is σ = 7167744. Its totient is φ = 5938920.

The previous prime is 6551603. The next prime is 6551639. The reversal of 6551611 is 1161556.

6551611 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6551611 - 2³ = 6551603 is a prime.

It is a Duffinian number.

6551611 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6551011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4746 + ... + 5968.

It is an arithmetic number, because the mean of its divisors is an integer number (895968).

Almost surely, 2^6551611 is an apocalyptic number.

6551611 is a deficient number, since it is larger than the sum of its proper divisors (616133).

6551611 is a wasteful number, since it uses less digits than its factorization.

6551611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721.

The product of its digits is 900, while the sum is 25.

The square root of 6551611 is about 2559.6114939576. The cubic root of 6551611 is about 187.1182014574.

The spelling of 6551611 in words is "six million, five hundred fifty-one thousand, six hundred eleven".