5551550345311 has 4 divisors (see below), whose sum is σ = 5551661606400. Its totient is φ = 5551439084224.

The previous prime is 5551550345287. The next prime is 5551550345321. The reversal of 5551550345311 is 1135430551555.

5551550345311 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.

It is a cyclic number.

It is not a de Polignac number, because 5551550345311 - 2²³ = 5551541956703 is a prime.

It is a super-3 number, since 3×5551550345311³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551550345321) 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, 55555666 + ... + 55655503.

It is an arithmetic number, because the mean of its divisors is an integer number (1387915401600).

Almost surely, 2^{5551550345311} is an apocalyptic number.

5551550345311 is a deficient number, since it is larger than the sum of its proper divisors (111261089).

5551550345311 is a wasteful number, since it uses less digits than its factorization.

5551550345311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111261088.

The product of its (nonzero) digits is 562500, while the sum is 43.

Adding to 5551550345311 its reverse (1135430551555), we get a palindrome (6686980896866).

The spelling of 5551550345311 in words is "five trillion, five hundred fifty-one billion, five hundred fifty million, three hundred forty-five thousand, three hundred eleven".