11544445553 has 2 divisors, whose sum is σ = 11544445554. Its totient is φ = 11544445552.

The previous prime is 11544445529. The next prime is 11544445559. The reversal of 11544445553 is 35554444511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9011135329 + 2533310224 = 94927^2 + 50332^2 .

It is a cyclic number.

It is not a de Polignac number, because 11544445553 - 2¹⁶ = 11544380017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11544445553.

It is not a weakly prime, because it can be changed into another prime (11544445559) 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, 5772222776 + 5772222777.

It is an arithmetic number, because the mean of its divisors is an integer number (5772222777).

Almost surely, 2^11544445553 is an apocalyptic number.

It is an amenable number.

11544445553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11544445553 is an equidigital number, since it uses as much as digits as its factorization.

11544445553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480000, while the sum is 41.

The spelling of 11544445553 in words is "eleven billion, five hundred forty-four million, four hundred forty-five thousand, five hundred fifty-three".