55881009713 has 2 divisors, whose sum is σ = 55881009714. Its totient is φ = 55881009712.

The previous prime is 55881009703. The next prime is 55881009719. The reversal of 55881009713 is 31790018855.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55850450929 + 30558784 = 236327^2 + 5528^2 .

It is a cyclic number.

It is not a de Polignac number, because 55881009713 - 2⁴ = 55881009697 is a prime.

It is not a weakly prime, because it can be changed into another prime (55881009719) 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, 27940504856 + 27940504857.

It is an arithmetic number, because the mean of its divisors is an integer number (27940504857).

Almost surely, 2^55881009713 is an apocalyptic number.

It is an amenable number.

55881009713 is a deficient number, since it is larger than the sum of its proper divisors (1).

55881009713 is an equidigital number, since it uses as much as digits as its factorization.

55881009713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 55881009713 in words is "fifty-five billion, eight hundred eighty-one million, nine thousand, seven hundred thirteen".