55005660559 has 2 divisors, whose sum is σ = 55005660560. Its totient is φ = 55005660558.

The previous prime is 55005660491. The next prime is 55005660569. The reversal of 55005660559 is 95506650055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55005660559 - 2¹³ = 55005652367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55005660569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502830279 + 27502830280.

It is an arithmetic number, because the mean of its divisors is an integer number (27502830280).

Almost surely, 2^55005660559 is an apocalyptic number.

55005660559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005660559 is an equidigital number, since it uses as much as digits as its factorization.

55005660559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1012500, while the sum is 46.

The spelling of 55005660559 in words is "fifty-five billion, five million, six hundred sixty thousand, five hundred fifty-nine".