55856868359 has 2 divisors, whose sum is σ = 55856868360. Its totient is φ = 55856868358.

The previous prime is 55856868323. The next prime is 55856868373. The reversal of 55856868359 is 95386865855.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55856868359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55856868259) 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, 27928434179 + 27928434180.

It is an arithmetic number, because the mean of its divisors is an integer number (27928434180).

Almost surely, 2^55856868359 is an apocalyptic number.

55856868359 is a deficient number, since it is larger than the sum of its proper divisors (1).

55856868359 is an equidigital number, since it uses as much as digits as its factorization.

55856868359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040000, while the sum is 68.

The spelling of 55856868359 in words is "fifty-five billion, eight hundred fifty-six million, eight hundred sixty-eight thousand, three hundred fifty-nine".