6549229441 has 2 divisors, whose sum is σ = 6549229442. Its totient is φ = 6549229440.

The previous prime is 6549229439. The next prime is 6549229459. The reversal of 6549229441 is 1449229456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431398416 + 117831025 = 80196^2 + 10855^2 .

It is a cyclic number.

It is not a de Polignac number, because 6549229441 - 2¹ = 6549229439 is a prime.

It is a super-3 number, since 3×6549229441³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 6549229439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6549229391 and 6549229400.

It is not a weakly prime, because it can be changed into another prime (6549229411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274614720 + 3274614721.

It is an arithmetic number, because the mean of its divisors is an integer number (3274614721).

Almost surely, 2^6549229441 is an apocalyptic number.

It is an amenable number.

6549229441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549229441 is an equidigital number, since it uses as much as digits as its factorization.

6549229441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 6549229441 is about 80927.3096117744. The cubic root of 6549229441 is about 1870.9552576003.

The spelling of 6549229441 in words is "six billion, five hundred forty-nine million, two hundred twenty-nine thousand, four hundred forty-one".