55570220200 has 96 divisors (see below), whose sum is σ = 142342362720. Its totient is φ = 20007200000.

The previous prime is 55570220183. The next prime is 55570220231. The reversal of 55570220200 is 202207555.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97155 + ... + 347245.

It is an arithmetic number, because the mean of its divisors is an integer number (1482732945).

Almost surely, 2^55570220200 is an apocalyptic number.

55570220200 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 55570220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71171181360).

55570220200 is an abundant number, since it is smaller than the sum of its proper divisors (86772142520).

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

55570220200 is a wasteful number, since it uses less digits than its factorization.

55570220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250219 (or 250210 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

Adding to 55570220200 its reverse (202207555), we get a palindrome (55772427755).

The spelling of 55570220200 in words is "fifty-five billion, five hundred seventy million, two hundred twenty thousand, two hundred".