550005555500 has 48 divisors (see below), whose sum is σ = 1209854100000. Its totient is φ = 218419444800.

The previous prime is 550005555479. The next prime is 550005555557. The reversal of 550005555500 is 5555500055.

It is a super-2 number, since 2×550005555500² (a number of 24 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3887375 + ... + 4026374.

It is an arithmetic number, because the mean of its divisors is an integer number (25205293750).

Almost surely, 2^550005555500 is an apocalyptic number.

550005555500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550005555500 is an abundant number, since it is smaller than the sum of its proper divisors (659848544500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550005555500 is a wasteful number, since it uses less digits than its factorization.

550005555500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913907 (or 7913895 counting only the distinct ones).

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

It can be divided in two parts, 5500055 and 55500, that added together give a palindrome (5555555).

The spelling of 550005555500 in words is "five hundred fifty billion, five million, five hundred fifty-five thousand, five hundred".