5550505555551 has 16 divisors (see below), whose sum is σ = 8082247722240. Its totient is φ = 3360282304320.

The previous prime is 5550505555537. The next prime is 5550505555597. The reversal of 5550505555551 is 1555555050555.

It is not a de Polignac number, because 5550505555551 - 2¹⁰ = 5550505554527 is a prime.

It is a super-2 number, since 2×5550505555551² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5550505555494 and 5550505555503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550505555451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91480630 + ... + 91541283.

It is an arithmetic number, because the mean of its divisors is an integer number (505140482640).

Almost surely, 2^{5550505555551} is an apocalyptic number.

5550505555551 is a deficient number, since it is larger than the sum of its proper divisors (2531742166689).

5550505555551 is a wasteful number, since it uses less digits than its factorization.

5550505555551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183022846.

The product of its (nonzero) digits is 9765625, while the sum is 51.

The spelling of 5550505555551 in words is "five trillion, five hundred fifty billion, five hundred five million, five hundred fifty-five thousand, five hundred fifty-one".