11055556019 has 2 divisors, whose sum is σ = 11055556020. Its totient is φ = 11055556018.

The previous prime is 11055555997. The next prime is 11055556067. The reversal of 11055556019 is 91065555011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11055556019 - 2¹⁶ = 11055490483 is a prime.

It is a super-2 number, since 2×11055556019² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11055556079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5527778009 + 5527778010.

It is an arithmetic number, because the mean of its divisors is an integer number (5527778010).

Almost surely, 2^11055556019 is an apocalyptic number.

11055556019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11055556019 is an equidigital number, since it uses as much as digits as its factorization.

11055556019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 38.

The spelling of 11055556019 in words is "eleven billion, fifty-five million, five hundred fifty-six thousand, nineteen".