6705551 has 4 divisors (see below), whose sum is σ = 6745872. Its totient is φ = 6665232.

The previous prime is 6705541. The next prime is 6705553. The reversal of 6705551 is 1555076.

6705551 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 a cyclic number.

It is not a de Polignac number, because 6705551 - 2¹⁸ = 6443407 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 (6705553) 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, 19910 + ... + 20243.

It is an arithmetic number, because the mean of its divisors is an integer number (1686468).

Almost surely, 2^6705551 is an apocalyptic number.

6705551 is a deficient number, since it is larger than the sum of its proper divisors (40321).

6705551 is a wasteful number, since it uses less digits than its factorization.

6705551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40320.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 6705551 is about 2589.5078683024. The cubic root of 6705551 is about 188.5724122396.

The spelling of 6705551 in words is "six million, seven hundred five thousand, five hundred fifty-one".