55822 has 16 divisors (see below), whose sum is σ = 95760. Its totient is φ = 24192.

The previous prime is 55819. The next prime is 55823. The reversal of 55822 is 22855.

55822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55793 and 55802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (5985).

2⁵⁵⁸²² is an apocalyptic number.

55822 is a deficient number, since it is larger than the sum of its proper divisors (39938).

55822 is a wasteful number, since it uses less digits than its factorization.

55822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147.

The product of its digits is 800, while the sum is 22.

The square root of 55822 is about 236.2667983446. The cubic root of 55822 is about 38.2180447080.

The spelling of 55822 in words is "fifty-five thousand, eight hundred twenty-two".