55032200 has 24 divisors (see below), whose sum is σ = 127950330. Its totient is φ = 22012800.

The previous prime is 55032199. The next prime is 55032221. The reversal of 55032200 is 223055.

55032200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 51008164 + 4024036 = 7142^2 + 2006^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137381 + ... + 137780.

Almost surely, 2^55032200 is an apocalyptic number.

55032200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55032200 is an abundant number, since it is smaller than the sum of its proper divisors (72918130).

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

55032200 is a wasteful number, since it uses less digits than its factorization.

55032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275177 (or 275168 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 55032200 is about 7418.3690930015. The cubic root of 55032200 is about 380.3694467911.

Adding to 55032200 its reverse (223055), we get a palindrome (55255255).

The spelling of 55032200 in words is "fifty-five million, thirty-two thousand, two hundred".