54919 has 2 divisors, whose sum is σ = 54920. Its totient is φ = 54918.

The previous prime is 54917. The next prime is 54941. The reversal of 54919 is 91945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54919 - 2¹ = 54917 is a prime.

It is a super-2 number, since 2×54919² = 6032193122, which contains 22 as substring.

Together with 54917, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27459 + 27460.

It is an arithmetic number, because the mean of its divisors is an integer number (27460).

2⁵⁴⁹¹⁹ is an apocalyptic number.

54919 is a deficient number, since it is larger than the sum of its proper divisors (1).

54919 is an equidigital number, since it uses as much as digits as its factorization.

54919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 54919 is about 234.3480317818. The cubic root of 54919 is about 38.0108463960.

The spelling of 54919 in words is "fifty-four thousand, nine hundred nineteen".