54811 has 4 divisors (see below), whose sum is σ = 55800. Its totient is φ = 53824.

The previous prime is 54799. The next prime is 54829. The reversal of 54811 is 11845.

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

It is a 6-Lehmer number, since φ(54811) divides (54811-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 54811 - 2⁵ = 54779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54851) 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, 406 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (13950).

2⁵⁴⁸¹¹ is an apocalyptic number.

54811 is a deficient number, since it is larger than the sum of its proper divisors (989).

54811 is an equidigital number, since it uses as much as digits as its factorization.

54811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its digits is 160, while the sum is 19.

The square root of 54811 is about 234.1174918711. The cubic root of 54811 is about 37.9859135231.

The spelling of 54811 in words is "fifty-four thousand, eight hundred eleven".