54244242839 has 2 divisors, whose sum is σ = 54244242840. Its totient is φ = 54244242838.

The previous prime is 54244242803. The next prime is 54244242841. The reversal of 54244242839 is 93824244245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54244242839 is a prime.

Together with 54244242841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54244242793 and 54244242802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54244242859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27122121419 + 27122121420.

It is an arithmetic number, because the mean of its divisors is an integer number (27122121420).

Almost surely, 2^54244242839 is an apocalyptic number.

54244242839 is a deficient number, since it is larger than the sum of its proper divisors (1).

54244242839 is an equidigital number, since it uses as much as digits as its factorization.

54244242839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 47.

The spelling of 54244242839 in words is "fifty-four billion, two hundred forty-four million, two hundred forty-two thousand, eight hundred thirty-nine".