55204200 has 96 divisors (see below), whose sum is σ = 190166400. Its totient is φ = 14719680.

The previous prime is 55204199. The next prime is 55204223. The reversal of 55204200 is 240255.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 289 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (1980900).

Almost surely, 2^55204200 is an apocalyptic number.

55204200 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 55204200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95083200).

55204200 is an abundant number, since it is smaller than the sum of its proper divisors (134962200).

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

55204200 is a wasteful number, since it uses less digits than its factorization.

55204200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248 (or 10233 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 55204200 is about 7429.9528935250. The cubic root of 55204200 is about 380.7653089940.

Adding to 55204200 its reverse (240255), we get a palindrome (55444455).

The spelling of 55204200 in words is "fifty-five million, two hundred four thousand, two hundred".