5549857669 has 4 divisors (see below), whose sum is σ = 5553334444. Its totient is φ = 5546380896.

The previous prime is 5549857667. The next prime is 5549857717. The reversal of 5549857669 is 9667589455.

5549857669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9667589455 = 5 ⋅1933517891.

It can be written as a sum of positive squares in 2 ways, for example, as 592289569 + 4957568100 = 24337^2 + 70410^2 .

It is a cyclic number.

It is not a de Polignac number, because 5549857669 - 2¹ = 5549857667 is a prime.

It is a super-2 number, since 2×5549857669² = 61601840292316227122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5549857669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5549857667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735992 + ... + 1739185.

It is an arithmetic number, because the mean of its divisors is an integer number (1388333611).

Almost surely, 2^5549857669 is an apocalyptic number.

It is an amenable number.

5549857669 is a deficient number, since it is larger than the sum of its proper divisors (3476775).

5549857669 is a wasteful number, since it uses less digits than its factorization.

5549857669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476774.

The product of its digits is 81648000, while the sum is 64.

The square root of 5549857669 is about 74497.3668595072. The cubic root of 5549857669 is about 1770.4919173878.

The spelling of 5549857669 in words is "five billion, five hundred forty-nine million, eight hundred fifty-seven thousand, six hundred sixty-nine".