5500005500 has 96 divisors (see below), whose sum is σ = 13235092416. Its totient is φ = 1980000000.

The previous prime is 5500005491. The next prime is 5500005503. The reversal of 5500005500 is 55000055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500005503) 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 31 ways as a sum of consecutive naturals, for example, 550550 + ... + 560450.

It is an arithmetic number, because the mean of its divisors is an integer number (137865546).

Almost surely, 2^5500005500 is an apocalyptic number.

5500005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5500005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6617546208).

5500005500 is an abundant number, since it is smaller than the sum of its proper divisors (7735086916).

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

5500005500 is a wasteful number, since it uses less digits than its factorization.

5500005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032 (or 10020 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 5500005500 is about 74162.0219519398. The cubic root of 5500005500 is about 1765.1747560542.

Adding to 5500005500 its reverse (55000055), we get a palindrome (5555005555).

Subtracting from 5500005500 its reverse (55000055), we obtain a palindrome (5445005445).

5500005500 divided by its reverse (55000055) gives a square (100 = 10²).

It can be divided in two parts, 550000 and 5500, that multiplied together give a square (3025000000 = 55000²).

The spelling of 5500005500 in words is "five billion, five hundred million, five thousand, five hundred".