555056111100 has 144 divisors (see below), whose sum is σ = 1676584879200. Its totient is φ = 141599646720.

The previous prime is 555056111087. The next prime is 555056111101. The reversal of 555056111100 is 1111650555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555056111101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 655642 + ... + 1240958.

It is an arithmetic number, because the mean of its divisors is an integer number (11642950550).

Almost surely, 2^555056111100 is an apocalyptic number.

555056111100 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 555056111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838292439600).

555056111100 is an abundant number, since it is smaller than the sum of its proper divisors (1121528768100).

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

555056111100 is a wasteful number, since it uses less digits than its factorization.

555056111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585472 (or 585465 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 555056111100 its reverse (1111650555), we get a palindrome (556167761655).

The spelling of 555056111100 in words is "five hundred fifty-five billion, fifty-six million, one hundred eleven thousand, one hundred".