55005555005 has 16 divisors (see below), whose sum is σ = 66441057840. Its totient is φ = 43715255808.

The previous prime is 55005554993. The next prime is 55005555013. The reversal of 55005555005 is 50055550055.

It can be written as a sum of positive squares in 8 ways, for example, as 22734306841 + 32271248164 = 150779^2 + 179642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005555005 is a prime.

It is a super-2 number, since 2×55005555005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1090319 + ... + 1139651.

It is an arithmetic number, because the mean of its divisors is an integer number (4152566115).

Almost surely, 2^55005555005 is an apocalyptic number.

It is an amenable number.

55005555005 is a deficient number, since it is larger than the sum of its proper divisors (11435502835).

55005555005 is a wasteful number, since it uses less digits than its factorization.

55005555005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50800.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55005555005 in words is "fifty-five billion, five million, five hundred fifty-five thousand, five".