555840000 has 300 divisors, whose sum is σ = 2014984686. Its totient is φ = 147456000.

The previous prime is 555839981. The next prime is 555840023. The reversal of 555840000 is 48555.

It can be written as a sum of positive squares in 5 ways, for example, as 389376 + 555450624 = 624^2 + 23568^2 .

It is a tau number, because it is divible by the number of its divisors (300).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2879904 + ... + 2880096.

Almost surely, 2^555840000 is an apocalyptic number.

555840000 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 555840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1007492343).

555840000 is an abundant number, since it is smaller than the sum of its proper divisors (1459144686).

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

555840000 is an equidigital number, since it uses as much as digits as its factorization.

555840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 555840000 is about 23576.2592452662. The cubic root of 555840000 is about 822.2109675704.

Adding to 555840000 its reverse (48555), we get a palindrome (555888555).

The spelling of 555840000 in words is "five hundred fifty-five million, eight hundred forty thousand".