54111 has 8 divisors (see below), whose sum is σ = 76464. Its totient is φ = 33920.

The previous prime is 54101. The next prime is 54121. The reversal of 54111 is 11145.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54101) and next prime (54121).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54111 - 2¹⁰ = 53087 is a prime.

It is an Ulam number.

54111 is a modest number, since divided by 111 gives 54 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 54111.

It is not an unprimeable number, because it can be changed into a prime (54101) 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 7 ways as a sum of consecutive naturals, for example, 480 + ... + 581.

It is an arithmetic number, because the mean of its divisors is an integer number (9558).

2⁵⁴¹¹¹ is an apocalyptic number.

54111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

54111 is a deficient number, since it is larger than the sum of its proper divisors (22353).

54111 is a wasteful number, since it uses less digits than its factorization.

54111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its digits is 20, while the sum is 12.

The square root of 54111 is about 232.6177121373. The cubic root of 54111 is about 37.8235121490.

Adding to 54111 its reverse (11145), we get a palindrome (65256).

The spelling of 54111 in words is "fifty-four thousand, one hundred eleven".