55505050005571 has 4 divisors (see below), whose sum is σ = 55506132807552. Its totient is φ = 55503967203592.

The previous prime is 55505050005527. The next prime is 55505050005667. The reversal of 55505050005571 is 17550005050555.

55505050005571 is digitally balanced in base 2, 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 55505050005571 - 2¹⁷ = 55505049874499 is a prime.

It is a super-2 number, since 2×55505050005571² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55505050005971) 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, 541324096 + ... + 541426621.

It is an arithmetic number, because the mean of its divisors is an integer number (13876533201888).

Almost surely, 2^{55505050005571} is an apocalyptic number.

55505050005571 is a deficient number, since it is larger than the sum of its proper divisors (1082801981).

55505050005571 is a wasteful number, since it uses less digits than its factorization.

55505050005571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082801980.

The product of its (nonzero) digits is 546875, while the sum is 43.

The spelling of 55505050005571 in words is "fifty-five trillion, five hundred five billion, fifty million, five thousand, five hundred seventy-one".