6550261 has 2 divisors, whose sum is σ = 6550262. Its totient is φ = 6550260.

The previous prime is 6550223. The next prime is 6550267. The reversal of 6550261 is 1620556.

6550261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5731236 + 819025 = 2394^2 + 905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6550261 is a prime.

6550261 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6550267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275130 + 3275131.

It is an arithmetic number, because the mean of its divisors is an integer number (3275131).

Almost surely, 2^6550261 is an apocalyptic number.

It is an amenable number.

6550261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550261 is an equidigital number, since it uses as much as digits as its factorization.

6550261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 6550261 is about 2559.3477684754. The cubic root of 6550261 is about 187.1053482866.

The spelling of 6550261 in words is "six million, five hundred fifty thousand, two hundred sixty-one".