54695819 has 2 divisors, whose sum is σ = 54695820. Its totient is φ = 54695818.

The previous prime is 54695803. The next prime is 54695821. The reversal of 54695819 is 91859645.

It is a happy number.

54695819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54695819 - 2⁴ = 54695803 is a prime.

It is a super-2 number, since 2×54695819² = 5983265232161522, which contains 22 as substring.

Together with 54695821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54695869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27347909 + 27347910.

It is an arithmetic number, because the mean of its divisors is an integer number (27347910).

Almost surely, 2^54695819 is an apocalyptic number.

54695819 is a deficient number, since it is larger than the sum of its proper divisors (1).

54695819 is an equidigital number, since it uses as much as digits as its factorization.

54695819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 47.

The square root of 54695819 is about 7395.6621745453. The cubic root of 54695819 is about 379.5928672771.

The spelling of 54695819 in words is "fifty-four million, six hundred ninety-five thousand, eight hundred nineteen".