6768551 has 4 divisors (see below), whose sum is σ = 6774504. Its totient is φ = 6762600.

The previous prime is 6768547. The next prime is 6768557. The reversal of 6768551 is 1558676.

It is a happy number.

6768551 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6768551 - 2² = 6768547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768557) 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, 680 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (1693626).

Almost surely, 2^6768551 is an apocalyptic number.

6768551 is a deficient number, since it is larger than the sum of its proper divisors (5953).

6768551 is a wasteful number, since it uses less digits than its factorization.

6768551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952.

The product of its digits is 50400, while the sum is 38.

The square root of 6768551 is about 2601.6439033811. The cubic root of 6768551 is about 189.1611309379.

The spelling of 6768551 in words is "six million, seven hundred sixty-eight thousand, five hundred fifty-one".