55005279569 has 2 divisors, whose sum is σ = 55005279570. Its totient is φ = 55005279568.

The previous prime is 55005279557. The next prime is 55005279761. The reversal of 55005279569 is 96597250055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43170450625 + 11834828944 = 207775^2 + 108788^2 .

It is a cyclic number.

It is not a de Polignac number, because 55005279569 - 2²⁰ = 55004230993 is a prime.

It is a super-2 number, since 2×55005279569² (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 55005279569.

It is not a weakly prime, because it can be changed into another prime (55005249569) 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, 27502639784 + 27502639785.

It is an arithmetic number, because the mean of its divisors is an integer number (27502639785).

Almost surely, 2^55005279569 is an apocalyptic number.

It is an amenable number.

55005279569 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005279569 is an equidigital number, since it uses as much as digits as its factorization.

55005279569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4252500, while the sum is 53.

The spelling of 55005279569 in words is "fifty-five billion, five million, two hundred seventy-nine thousand, five hundred sixty-nine".