1055550110491 has 2 divisors, whose sum is σ = 1055550110492. Its totient is φ = 1055550110490.

The previous prime is 1055550110443. The next prime is 1055550110519. The reversal of 1055550110491 is 1940110555501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1055550110491 - 2⁹ = 1055550109979 is a prime.

It is a super-2 number, since 2×1055550110491² (a number of 25 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 1055550110491.

It is not a weakly prime, because it can be changed into another prime (1055550110191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527775055245 + 527775055246.

It is an arithmetic number, because the mean of its divisors is an integer number (527775055246).

Almost surely, 2^{1055550110491} is an apocalyptic number.

1055550110491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055550110491 is an equidigital number, since it uses as much as digits as its factorization.

1055550110491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 37.

Adding to 1055550110491 its reverse (1940110555501), we get a palindrome (2995660665992).

The spelling of 1055550110491 in words is "one trillion, fifty-five billion, five hundred fifty million, one hundred ten thousand, four hundred ninety-one".