550555100000 has 72 divisors (see below), whose sum is σ = 1354795225056. Its totient is φ = 220222000000.

The previous prime is 550555099999. The next prime is 550555100027. The reversal of 550555100000 is 1555055.

It is a super-2 number, since 2×550555100000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2652776 + ... + 2852775.

It is an arithmetic number, because the mean of its divisors is an integer number (18816600348).

Almost surely, 2^550555100000 is an apocalyptic number.

550555100000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550555100000 is an abundant number, since it is smaller than the sum of its proper divisors (804240125056).

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

550555100000 is an frugal number, since it uses more digits than its factorization.

550555100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505586 (or 5505558 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

Adding to 550555100000 its reverse (1555055), we get a palindrome (550556655055).

The spelling of 550555100000 in words is "five hundred fifty billion, five hundred fifty-five million, one hundred thousand".