5555556100 has 72 divisors (see below), whose sum is σ = 12524589000. Its totient is φ = 2136422400.

The previous prime is 5555556079. The next prime is 5555556107. The reversal of 5555556100 is 16555555.

It can be written as a sum of positive squares in 12 ways, for example, as 846577216 + 4708978884 = 29096^2 + 68622^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5555556100.

It is not an unprimeable number, because it can be changed into a prime (5555556107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 694926 + ... + 702874.

It is an arithmetic number, because the mean of its divisors is an integer number (173952625).

Almost surely, 2^5555556100 is an apocalyptic number.

5555556100 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 5555556100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6262294500).

5555556100 is an abundant number, since it is smaller than the sum of its proper divisors (6969032900).

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

5555556100 is a wasteful number, since it uses less digits than its factorization.

5555556100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233 (or 8226 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 37.

The square root of 5555556100 is about 74535.6029022373. The cubic root of 5555556100 is about 1771.0976731602.

The spelling of 5555556100 in words is "five billion, five hundred fifty-five million, five hundred fifty-six thousand, one hundred".