55606 has 4 divisors (see below), whose sum is σ = 83412. Its totient is φ = 27802.

The previous prime is 55603. The next prime is 55609. The reversal of 55606 is 60655.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55603) and next prime (55609).

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900 + ... + 13903.

It is an arithmetic number, because the mean of its divisors is an integer number (20853).

2⁵⁵⁶⁰⁶ is an apocalyptic number.

55606 is a deficient number, since it is larger than the sum of its proper divisors (27806).

55606 is a wasteful number, since it uses less digits than its factorization.

55606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55606 is about 235.8092449418. The cubic root of 55606 is about 38.1686868195.

The spelling of 55606 in words is "fifty-five thousand, six hundred six".