55560779565803 has 2 divisors, whose sum is σ = 55560779565804. Its totient is φ = 55560779565802.

The previous prime is 55560779565791. The next prime is 55560779565833. The reversal of 55560779565803 is 30856597706555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55560779565803 - 2³² = 55556484598507 is a prime.

It is not a weakly prime, because it can be changed into another prime (55560779565833) 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, 27780389782901 + 27780389782902.

It is an arithmetic number, because the mean of its divisors is an integer number (27780389782902).

Almost surely, 2^{55560779565803} is an apocalyptic number.

55560779565803 is a deficient number, since it is larger than the sum of its proper divisors (1).

55560779565803 is an equidigital number, since it uses as much as digits as its factorization.

55560779565803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1190700000, while the sum is 71.

The spelling of 55560779565803 in words is "fifty-five trillion, five hundred sixty billion, seven hundred seventy-nine million, five hundred sixty-five thousand, eight hundred three".