11255582549 has 2 divisors, whose sum is σ = 11255582550. Its totient is φ = 11255582548.

The previous prime is 11255582543. The next prime is 11255582593. The reversal of 11255582549 is 94528555211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6268680625 + 4986901924 = 79175^2 + 70618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11255582549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11255582543) 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, 5627791274 + 5627791275.

It is an arithmetic number, because the mean of its divisors is an integer number (5627791275).

Almost surely, 2^11255582549 is an apocalyptic number.

It is an amenable number.

11255582549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11255582549 is an equidigital number, since it uses as much as digits as its factorization.

11255582549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720000, while the sum is 47.

The spelling of 11255582549 in words is "eleven billion, two hundred fifty-five million, five hundred eighty-two thousand, five hundred forty-nine".