55567 has 4 divisors (see below), whose sum is σ = 56056. Its totient is φ = 55080.

The previous prime is 55547. The next prime is 55579. The reversal of 55567 is 76555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55567 - 2⁷ = 55439 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28 + ... + 334.

It is an arithmetic number, because the mean of its divisors is an integer number (14014).

2⁵⁵⁵⁶⁷ is an apocalyptic number.

55567 is a deficient number, since it is larger than the sum of its proper divisors (489).

55567 is a wasteful number, since it uses less digits than its factorization.

55567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 5250, while the sum is 28.

The square root of 55567 is about 235.7265364782. The cubic root of 55567 is about 38.1597613623.

The spelling of 55567 in words is "fifty-five thousand, five hundred sixty-seven".