55805555200 has 120 divisors (see below), whose sum is σ = 142723722240. Its totient is φ = 21601996800.

The previous prime is 55805555171. The next prime is 55805555261. The reversal of 55805555200 is 255550855.

It is a super-2 number, since 2×55805555200² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326481 + ... + 467119.

It is an arithmetic number, because the mean of its divisors is an integer number (1189364352).

Almost surely, 2^55805555200 is an apocalyptic number.

55805555200 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 55805555200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71361861120).

55805555200 is an abundant number, since it is smaller than the sum of its proper divisors (86918167040).

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

55805555200 is a wasteful number, since it uses less digits than its factorization.

55805555200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140698 (or 140677 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 55805555200 in words is "fifty-five billion, eight hundred five million, five hundred fifty-five thousand, two hundred".