550000005500 has 96 divisors (see below), whose sum is σ = 1387482602688. Its totient is φ = 188235264000.

The previous prime is 550000005497. The next prime is 550000005601. The reversal of 550000005500 is 5500000055.

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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2847677 + ... + 3034676.

It is an arithmetic number, because the mean of its divisors is an integer number (14452943778).

Almost surely, 2^550000005500 is an apocalyptic number.

550000005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550000005500 is an abundant number, since it is smaller than the sum of its proper divisors (837482597188).

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

550000005500 is a wasteful number, since it uses less digits than its factorization.

550000005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882400 (or 5882388 counting only the distinct ones).

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

Adding to 550000005500 its reverse (5500000055), we get a palindrome (555500005555).

Subtracting from 550000005500 its reverse (5500000055), we obtain a palindrome (544500005445).

550000005500 divided by its reverse (5500000055) gives a square (100 = 10²).

It can be divided in two parts, 55000000 and 5500, that multiplied together give a square (302500000000 = 550000²).

The spelling of 550000005500 in words is "five hundred fifty billion, five thousand, five hundred".