11552020289 has 2 divisors, whose sum is σ = 11552020290. Its totient is φ = 11552020288.

The previous prime is 11552020243. The next prime is 11552020357. The reversal of 11552020289 is 98202025511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9725312689 + 1826707600 = 98617^2 + 42740^2 .

It is an emirp because it is prime and its reverse (98202025511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11552020289 - 2⁸ = 11552020033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11552020589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776010144 + 5776010145.

It is an arithmetic number, because the mean of its divisors is an integer number (5776010145).

Almost surely, 2^11552020289 is an apocalyptic number.

It is an amenable number.

11552020289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11552020289 is an equidigital number, since it uses as much as digits as its factorization.

11552020289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 11552020289 in words is "eleven billion, five hundred fifty-two million, twenty thousand, two hundred eighty-nine".