55273 has 4 divisors (see below), whose sum is σ = 57088. Its totient is φ = 53460.

The previous prime is 55259. The next prime is 55291. The reversal of 55273 is 37255.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37255 = 5 ⋅7451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55273 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (55213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (14272).

2⁵⁵²⁷³ is an apocalyptic number.

It is an amenable number.

55273 is a deficient number, since it is larger than the sum of its proper divisors (1815).

55273 is a wasteful number, since it uses less digits than its factorization.

55273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its digits is 1050, while the sum is 22.

The square root of 55273 is about 235.1021054776. The cubic root of 55273 is about 38.0923423642.

It can be divided in two parts, 552 and 73, that added together give a 4-th power (625 = 5⁴).

The spelling of 55273 in words is "fifty-five thousand, two hundred seventy-three".