55543200 has 72 divisors (see below), whose sum is σ = 180800928. Its totient is φ = 14810880.

The previous prime is 55543193. The next prime is 55543211. The reversal of 55543200 is 234555.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 10.

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, 9172 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (2511124).

Almost surely, 2^55543200 is an apocalyptic number.

55543200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55543200 is an abundant number, since it is smaller than the sum of its proper divisors (125257728).

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

55543200 is a wasteful number, since it uses less digits than its factorization.

55543200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23166 (or 23153 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 55543200 is about 7452.7310430472. The cubic root of 55543200 is about 381.5431249263.

Adding to 55543200 its reverse (234555), we get a palindrome (55777755).

The spelling of 55543200 in words is "fifty-five million, five hundred forty-three thousand, two hundred".