55002200 has 96 divisors (see below), whose sum is σ = 145704960. Its totient is φ = 19113600.

The previous prime is 55002179. The next prime is 55002221. The reversal of 55002200 is 220055.

It is an interprime number because it is at equal distance from previous prime (55002179) and next prime (55002221).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50057 + ... + 51143.

It is an arithmetic number, because the mean of its divisors is an integer number (1517760).

Almost surely, 2^55002200 is an apocalyptic number.

55002200 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 55002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72852480).

55002200 is an abundant number, since it is smaller than the sum of its proper divisors (90702760).

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

55002200 is a wasteful number, since it uses less digits than its factorization.

55002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 55002200 is about 7416.3468095822. The cubic root of 55002200 is about 380.3003166118.

Adding to 55002200 its reverse (220055), we get a palindrome (55222255).

The spelling of 55002200 in words is "fifty-five million, two thousand, two hundred".