6555823 has 4 divisors (see below), whose sum is σ = 6708328. Its totient is φ = 6403320.

The previous prime is 6555821. The next prime is 6555833. The reversal of 6555823 is 3285556.

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 6555823 - 2¹ = 6555821 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 (6555821) 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, 76188 + ... + 76273.

It is an arithmetic number, because the mean of its divisors is an integer number (1677082).

Almost surely, 2^6555823 is an apocalyptic number.

6555823 is a deficient number, since it is larger than the sum of its proper divisors (152505).

6555823 is a wasteful number, since it uses less digits than its factorization.

6555823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152504.

The product of its digits is 36000, while the sum is 34.

The square root of 6555823 is about 2560.4341428750. The cubic root of 6555823 is about 187.1582920055.

The spelling of 6555823 in words is "six million, five hundred fifty-five thousand, eight hundred twenty-three".