550555005500 has 24 divisors (see below), whose sum is σ = 1202412133104. Its totient is φ = 220222002000.

The previous prime is 550555005499. The next prime is 550555005509. The reversal of 550555005500 is 5500555055.

It is a super-2 number, since 2×550555005500² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550555005509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550554506 + ... + 550555505.

It is an arithmetic number, because the mean of its divisors is an integer number (50100505546).

Almost surely, 2^550555005500 is an apocalyptic number.

550555005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550555005500 is an abundant number, since it is smaller than the sum of its proper divisors (651857127604).

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

550555005500 is a wasteful number, since it uses less digits than its factorization.

550555005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101110030 (or 1101110018 counting only the distinct ones).

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

The spelling of 550555005500 in words is "five hundred fifty billion, five hundred fifty-five million, five thousand, five hundred".