54856353407329 has 2 divisors, whose sum is σ = 54856353407330. Its totient is φ = 54856353407328.

The previous prime is 54856353407327. The next prime is 54856353407347. The reversal of 54856353407329 is 92370435365845.

It is a happy number.

54856353407329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42205135916304 + 12651217491025 = 6496548^2 + 3556855^2 .

It is a cyclic number.

It is not a de Polignac number, because 54856353407329 - 2¹ = 54856353407327 is a prime.

Together with 54856353407327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54856353407327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27428176703664 + 27428176703665.

It is an arithmetic number, because the mean of its divisors is an integer number (27428176703665).

Almost surely, 2^{54856353407329} is an apocalyptic number.

It is an amenable number.

54856353407329 is a deficient number, since it is larger than the sum of its proper divisors (1).

54856353407329 is an equidigital number, since it uses as much as digits as its factorization.

54856353407329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592000, while the sum is 64.

The spelling of 54856353407329 in words is "fifty-four trillion, eight hundred fifty-six billion, three hundred fifty-three million, four hundred seven thousand, three hundred twenty-nine".