55206 has 12 divisors (see below), whose sum is σ = 119652. Its totient is φ = 18396.

The previous prime is 55201. The next prime is 55207. The reversal of 55206 is 60255.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 3067 = 55206 / (5 + 5 + 2 + 0 + 6).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1516 + ... + 1551.

It is an arithmetic number, because the mean of its divisors is an integer number (9971).

2⁵⁵²⁰⁶ is an apocalyptic number.

55206 is an abundant number, since it is smaller than the sum of its proper divisors (64446).

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

55206 is a wasteful number, since it uses less digits than its factorization.

55206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3072 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 55206 is about 234.9595709904. The cubic root of 55206 is about 38.0769447388.

The spelling of 55206 in words is "fifty-five thousand, two hundred six".