6725549 has 2 divisors, whose sum is σ = 6725550. Its totient is φ = 6725548.

The previous prime is 6725533. The next prime is 6725597. The reversal of 6725549 is 9455276.

It is a happy number.

6725549 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., 4884100 + 1841449 = 2210^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 6725549 - 2⁴ = 6725533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6725519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3362774 + 3362775.

It is an arithmetic number, because the mean of its divisors is an integer number (3362775).

Almost surely, 2^6725549 is an apocalyptic number.

It is an amenable number.

6725549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6725549 is an equidigital number, since it uses as much as digits as its factorization.

6725549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 6725549 is about 2593.3663451198. The cubic root of 6725549 is about 188.7596863587.

The spelling of 6725549 in words is "six million, seven hundred twenty-five thousand, five hundred forty-nine".