5505055505551 has 8 divisors (see below), whose sum is σ = 6295527613440. Its totient is φ = 4715592299448.

The previous prime is 5505055505507. The next prime is 5505055505581. The reversal of 5505055505551 is 1555055505055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5505055505551 - 2²⁷ = 5504921287823 is a prime.

It is a super-2 number, since 2×5505055505551² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5505055505581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252213751 + ... + 252235576.

It is an arithmetic number, because the mean of its divisors is an integer number (786940951680).

Almost surely, 2^{5505055505551} is an apocalyptic number.

5505055505551 is a deficient number, since it is larger than the sum of its proper divisors (790472107889).

5505055505551 is a wasteful number, since it uses less digits than its factorization.

5505055505551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504450893.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 5505055505551 in words is "five trillion, five hundred five billion, fifty-five million, five hundred five thousand, five hundred fifty-one".