555555500 has 48 divisors (see below), whose sum is σ = 1218672000. Its totient is φ = 221244800.

The previous prime is 555555499. The next prime is 555555503. The reversal of 555555500 is 5555555.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555555503) 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 15 ways as a sum of consecutive naturals, for example, 117176 + ... + 121824.

It is an arithmetic number, because the mean of its divisors is an integer number (25389000).

Almost surely, 2^555555500 is an apocalyptic number.

555555500 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 555555500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609336000).

555555500 is an abundant number, since it is smaller than the sum of its proper divisors (663116500).

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

555555500 is a wasteful number, since it uses less digits than its factorization.

555555500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907 (or 4895 counting only the distinct ones).

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

The square root of 555555500 is about 23570.2248610403. The cubic root of 555555500 is about 822.0706640411.

Subtracting from 555555500 its reverse (5555555), we obtain a palindrome (549999945).

555555500 divided by its reverse (5555555) gives a square (100 = 10²).

It can be divided in two parts, 55 and 5555500, that added together give a palindrome (5555555).

The spelling of 555555500 in words is "five hundred fifty-five million, five hundred fifty-five thousand, five hundred".