6550555 has 8 divisors (see below), whose sum is σ = 8575344. Its totient is φ = 4764000.

The previous prime is 6550553. The next prime is 6550631. The reversal of 6550555 is 5550556.

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

It is not a de Polignac number, because 6550555 - 2¹ = 6550553 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 (6550553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59496 + ... + 59605.

It is an arithmetic number, because the mean of its divisors is an integer number (1071918).

Almost surely, 2^6550555 is an apocalyptic number.

6550555 is a deficient number, since it is larger than the sum of its proper divisors (2024789).

6550555 is a wasteful number, since it uses less digits than its factorization.

6550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119117.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 6550555 is about 2559.4052043395. The cubic root of 6550555 is about 187.1081475720.

Subtracting from 6550555 its reverse (5550556), we obtain a palindrome (999999).

The spelling of 6550555 in words is "six million, five hundred fifty thousand, five hundred fifty-five".