55873 has 4 divisors (see below), whose sum is σ = 56880. Its totient is φ = 54868.

The previous prime is 55871. The next prime is 55889. The reversal of 55873 is 37855.

It is the 97-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55873 - 2¹ = 55871 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (55871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (14220).

2⁵⁵⁸⁷³ is an apocalyptic number.

It is an amenable number.

55873 is a deficient number, since it is larger than the sum of its proper divisors (1007).

55873 is an equidigital number, since it uses as much as digits as its factorization.

55873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006.

The product of its digits is 4200, while the sum is 28.

The square root of 55873 is about 236.3747025382. The cubic root of 55873 is about 38.2296800668.

It can be divided in two parts, 5587 and 3, that multiplied together give a palindrome (16761).

The spelling of 55873 in words is "fifty-five thousand, eight hundred seventy-three".