55055505555529 has 2 divisors, whose sum is σ = 55055505555530. Its totient is φ = 55055505555528.

The previous prime is 55055505555503. The next prime is 55055505555563. The reversal of 55055505555529 is 92555550555055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29886470789904 + 25169034765625 = 5466852^2 + 5016875^2 .

It is a cyclic number.

It is not a de Polignac number, because 55055505555529 - 2²¹ = 55055503458377 is a prime.

It is a super-2 number, since 2×55055505555529² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55055505555329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527752777764 + 27527752777765.

It is an arithmetic number, because the mean of its divisors is an integer number (27527752777765).

Almost surely, 2^{55055505555529} is an apocalyptic number.

It is an amenable number.

55055505555529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055505555529 is an equidigital number, since it uses as much as digits as its factorization.

55055505555529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 175781250, while the sum is 61.

The spelling of 55055505555529 in words is "fifty-five trillion, fifty-five billion, five hundred five million, five hundred fifty-five thousand, five hundred twenty-nine".