55005550005 has 128 divisors (see below), whose sum is σ = 104897664000. Its totient is φ = 24596877312.

The previous prime is 55005550003. The next prime is 55005550063. The reversal of 55005550005 is 50005550055.

It is not a de Polignac number, because 55005550005 - 2¹ = 55005550003 is a prime.

It is a super-2 number, since 2×55005550005² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005550003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51454611 + ... + 51455679.

It is an arithmetic number, because the mean of its divisors is an integer number (819513000).

Almost surely, 2^55005550005 is an apocalyptic number.

It is an amenable number.

55005550005 is a deficient number, since it is larger than the sum of its proper divisors (49892113995).

55005550005 is a wasteful number, since it uses less digits than its factorization.

55005550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

It can be divided in two parts, 550055 and 50005, that added together give a triangular number (600060 = T₁₀₉₅).

The spelling of 55005550005 in words is "fifty-five billion, five million, five hundred fifty thousand, five".