55033200 has 90 divisors (see below), whose sum is σ = 190992984. Its totient is φ = 14674560.

The previous prime is 55033169. The next prime is 55033207. The reversal of 55033200 is 233055.

It is a tau number, because it is divible by the number of its divisors (90).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55033207) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4044 + ... + 11243.

Almost surely, 2^55033200 is an apocalyptic number.

55033200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55033200 is an abundant number, since it is smaller than the sum of its proper divisors (135959784).

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

55033200 is a wasteful number, since it uses less digits than its factorization.

55033200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311 (or 15297 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 55033200 is about 7418.4364929546. The cubic root of 55033200 is about 380.3717506977.

Adding to 55033200 its reverse (233055), we get a palindrome (55266255).

The spelling of 55033200 in words is "fifty-five million, thirty-three thousand, two hundred".