550105051100 has 72 divisors (see below), whose sum is σ = 1317938646528. Its totient is φ = 197628068800.

The previous prime is 550105051081. The next prime is 550105051103. The reversal of 550105051100 is 1150501055.

It is a happy number.

It is a super-2 number, since 2×550105051100² (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 (550105051103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2921324 + ... + 3103923.

It is an arithmetic number, because the mean of its divisors is an integer number (18304703424).

Almost surely, 2^550105051100 is an apocalyptic number.

550105051100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550105051100 is an abundant number, since it is smaller than the sum of its proper divisors (767833595428).

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

550105051100 is a wasteful number, since it uses less digits than its factorization.

550105051100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025355 (or 6025348 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 550105051100 its reverse (1150501055), we get a palindrome (551255552155).

The spelling of 550105051100 in words is "five hundred fifty billion, one hundred five million, fifty-one thousand, one hundred".