54771 has 4 divisors (see below), whose sum is σ = 73032. Its totient is φ = 36512.

The previous prime is 54767. The next prime is 54773. The reversal of 54771 is 17745.

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

It is a cyclic number.

It is not a de Polignac number, because 54771 - 2² = 54767 is a prime.

It is a D-number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (54773) 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, 9126 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (18258).

2⁵⁴⁷⁷¹ is an apocalyptic number.

54771 is a deficient number, since it is larger than the sum of its proper divisors (18261).

54771 is a wasteful number, since it uses less digits than its factorization.

54771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18260.

The product of its digits is 980, while the sum is 24.

The square root of 54771 is about 234.0320490873. The cubic root of 54771 is about 37.9766708144.

The spelling of 54771 in words is "fifty-four thousand, seven hundred seventy-one".