6550005 has 64 divisors (see below), whose sum is σ = 13436928. Its totient is φ = 2645760.

The previous prime is 6550001. The next prime is 6550007. The reversal of 6550005 is 5000556.

It is not a de Polignac number, because 6550005 - 2² = 6550001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61162 + ... + 61268.

It is an arithmetic number, because the mean of its divisors is an integer number (209952).

Almost surely, 2^6550005 is an apocalyptic number.

It is an amenable number.

6550005 is an abundant number, since it is smaller than the sum of its proper divisors (6886923).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6550005 is a wasteful number, since it uses less digits than its factorization.

6550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 6550005 is about 2559.2977552446. The cubic root of 6550005 is about 187.1029107454.

The spelling of 6550005 in words is "six million, five hundred fifty thousand, five".