6550109 has 2 divisors, whose sum is σ = 6550110. Its totient is φ = 6550108.

The previous prime is 6550099. The next prime is 6550123. The reversal of 6550109 is 9010556.

6550109 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6017209 + 532900 = 2453^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 6550109 - 2²⁰ = 5501533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6550129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275054 + 3275055.

It is an arithmetic number, because the mean of its divisors is an integer number (3275055).

Almost surely, 2^6550109 is an apocalyptic number.

It is an amenable number.

6550109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550109 is an equidigital number, since it uses as much as digits as its factorization.

6550109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 6550109 is about 2559.3180732375. The cubic root of 6550109 is about 187.1039010042.

The spelling of 6550109 in words is "six million, five hundred fifty thousand, one hundred nine".