55606488881 has 2 divisors, whose sum is σ = 55606488882. Its totient is φ = 55606488880.

The previous prime is 55606488869. The next prime is 55606488967. The reversal of 55606488881 is 18888460655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54632050225 + 974438656 = 233735^2 + 31216^2 .

It is a cyclic number.

It is not a de Polignac number, because 55606488881 - 2¹⁰ = 55606487857 is a prime.

It is a super-2 number, since 2×55606488881² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55606488881.

It is not a weakly prime, because it can be changed into another prime (55606488841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803244440 + 27803244441.

It is an arithmetic number, because the mean of its divisors is an integer number (27803244441).

Almost surely, 2^55606488881 is an apocalyptic number.

It is an amenable number.

55606488881 is a deficient number, since it is larger than the sum of its proper divisors (1).

55606488881 is an equidigital number, since it uses as much as digits as its factorization.

55606488881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14745600, while the sum is 59.

The spelling of 55606488881 in words is "fifty-five billion, six hundred six million, four hundred eighty-eight thousand, eight hundred eighty-one".