55005501099943 has 2 divisors, whose sum is σ = 55005501099944. Its totient is φ = 55005501099942.

The previous prime is 55005501099907. The next prime is 55005501100007. The reversal of 55005501099943 is 34999010550055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55005501099943 - 2¹⁷ = 55005500968871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55005501099343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502750549971 + 27502750549972.

It is an arithmetic number, because the mean of its divisors is an integer number (27502750549972).

Almost surely, 2^{55005501099943} is an apocalyptic number.

55005501099943 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005501099943 is an equidigital number, since it uses as much as digits as its factorization.

55005501099943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5467500, while the sum is 55.

The spelling of 55005501099943 in words is "fifty-five trillion, five billion, five hundred one million, ninety-nine thousand, nine hundred forty-three".