11081563 has 2 divisors, whose sum is σ = 11081564. Its totient is φ = 11081562.

The previous prime is 11081527. The next prime is 11081591. The reversal of 11081563 is 36518011.

It is a strong prime.

It is an emirp because it is prime and its reverse (36518011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11081563 - 2⁹ = 11081051 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540781 + 5540782.

It is an arithmetic number, because the mean of its divisors is an integer number (5540782).

Almost surely, 2^11081563 is an apocalyptic number.

11081563 is a deficient number, since it is larger than the sum of its proper divisors (1).

11081563 is an equidigital number, since it uses as much as digits as its factorization.

11081563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 11081563 is about 3328.8981660604. The cubic root of 11081563 is about 222.9463362999.

Adding to 11081563 its reverse (36518011), we get a palindrome (47599574).

The spelling of 11081563 in words is "eleven million, eighty-one thousand, five hundred sixty-three".