555220000 has 240 divisors, whose sum is σ = 1530410112. Its totient is φ = 197120000.

The previous prime is 555219989. The next prime is 555220007. The reversal of 555220000 is 22555.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 555220000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555220007) 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 39 ways as a sum of consecutive naturals, for example, 7819965 + ... + 7820035.

Almost surely, 2^555220000 is an apocalyptic number.

555220000 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 555220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765205056).

555220000 is an abundant number, since it is smaller than the sum of its proper divisors (975190112).

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

555220000 is a wasteful number, since it uses less digits than its factorization.

555220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 555220000 is about 23563.1067561135. The cubic root of 555220000 is about 821.9051478770.

Adding to 555220000 its reverse (22555), we get a palindrome (555242555).

It can be divided in two parts, 5552 and 20000, that added together give a palindrome (25552).

The spelling of 555220000 in words is "five hundred fifty-five million, two hundred twenty thousand".