55505050005667 has 2 divisors, whose sum is σ = 55505050005668. Its totient is φ = 55505050005666.

The previous prime is 55505050005527. The next prime is 55505050005677. The reversal of 55505050005667 is 76650005050555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55505050005667 - 2¹⁵ = 55505049972899 is a prime.

It is a super-2 number, since 2×55505050005667² (a number of 28 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 55505050005667.

It is not a weakly prime, because it can be changed into another prime (55505050005677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752525002833 + 27752525002834.

It is an arithmetic number, because the mean of its divisors is an integer number (27752525002834).

Almost surely, 2^{55505050005667} is an apocalyptic number.

55505050005667 is a deficient number, since it is larger than the sum of its proper divisors (1).

55505050005667 is an equidigital number, since it uses as much as digits as its factorization.

55505050005667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3937500, while the sum is 49.

The spelling of 55505050005667 in words is "fifty-five trillion, five hundred five billion, fifty million, five thousand, six hundred sixty-seven".