11441553257 has 2 divisors, whose sum is σ = 11441553258. Its totient is φ = 11441553256.

The previous prime is 11441553203. The next prime is 11441553259. The reversal of 11441553257 is 75235514411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9334651456 + 2106901801 = 96616^2 + 45901^2 .

It is a cyclic number.

It is not a de Polignac number, because 11441553257 - 2⁸ = 11441553001 is a prime.

Together with 11441553259, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11441553257.

It is not a weakly prime, because it can be changed into another prime (11441553259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5720776628 + 5720776629.

It is an arithmetic number, because the mean of its divisors is an integer number (5720776629).

Almost surely, 2^11441553257 is an apocalyptic number.

It is an amenable number.

11441553257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11441553257 is an equidigital number, since it uses as much as digits as its factorization.

11441553257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The spelling of 11441553257 in words is "eleven billion, four hundred forty-one million, five hundred fifty-three thousand, two hundred fifty-seven".