5550505555549 has 4 divisors (see below), whose sum is σ = 5877005882364. Its totient is φ = 5224005228736.

The previous prime is 5550505555537. The next prime is 5550505555597. The reversal of 5550505555549 is 9455555050555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4091893802649 + 1458611752900 = 2022843^2 + 1207730^2 .

It is a cyclic number.

It is not a de Polignac number, because 5550505555549 - 2¹¹ = 5550505553501 is a prime.

It is a super-2 number, since 2×5550505555549² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5550505555493 and 5550505555502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550505555949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163250163382 + ... + 163250163415.

It is an arithmetic number, because the mean of its divisors is an integer number (1469251470591).

Almost surely, 2^{5550505555549} is an apocalyptic number.

It is an amenable number.

5550505555549 is a deficient number, since it is larger than the sum of its proper divisors (326500326815).

5550505555549 is a wasteful number, since it uses less digits than its factorization.

5550505555549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326500326814.

The product of its (nonzero) digits is 70312500, while the sum is 58.

The spelling of 5550505555549 in words is "five trillion, five hundred fifty billion, five hundred five million, five hundred fifty-five thousand, five hundred forty-nine".