55505050005971 has 2 divisors, whose sum is σ = 55505050005972. Its totient is φ = 55505050005970.

The previous prime is 55505050005961. The next prime is 55505050006039. The reversal of 55505050005971 is 17950005050555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55505050005971 - 2²⁶ = 55504982897107 is a prime.

It is not a weakly prime, because it can be changed into another prime (55505050005961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752525002985 + 27752525002986.

It is an arithmetic number, because the mean of its divisors is an integer number (27752525002986).

Almost surely, 2^{55505050005971} is an apocalyptic number.

55505050005971 is a deficient number, since it is larger than the sum of its proper divisors (1).

55505050005971 is an equidigital number, since it uses as much as digits as its factorization.

55505050005971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 984375, while the sum is 47.

The spelling of 55505050005971 in words is "fifty-five trillion, five hundred five billion, fifty million, five thousand, nine hundred seventy-one".