55003200 has 168 divisors, whose sum is σ = 206361792. Its totient is φ = 12564480.

The previous prime is 55003199. The next prime is 55003213. The reversal of 55003200 is 230055.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 55003200.

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, 32782 + ... + 34418.

It is an arithmetic number, because the mean of its divisors is an integer number (1228344).

Almost surely, 2^55003200 is an apocalyptic number.

55003200 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 55003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103180896).

55003200 is an abundant number, since it is smaller than the sum of its proper divisors (151358592).

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

55003200 is a wasteful number, since it uses less digits than its factorization.

55003200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 55003200 is about 7416.4142279136. The cubic root of 55003200 is about 380.3026213561.

Adding to 55003200 its reverse (230055), we get a palindrome (55233255).

The spelling of 55003200 in words is "fifty-five million, three thousand, two hundred".