11105250553 has 2 divisors, whose sum is σ = 11105250554. Its totient is φ = 11105250552.

The previous prime is 11105250523. The next prime is 11105250557. The reversal of 11105250553 is 35505250111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11101361769 + 3888784 = 105363^2 + 1972^2 .

It is an emirp because it is prime and its reverse (35505250111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11105250553 - 2³³ = 2515315961 is a prime.

It is not a weakly prime, because it can be changed into another prime (11105250557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552625276 + 5552625277.

It is an arithmetic number, because the mean of its divisors is an integer number (5552625277).

Almost surely, 2^11105250553 is an apocalyptic number.

It is an amenable number.

11105250553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11105250553 is an equidigital number, since it uses as much as digits as its factorization.

11105250553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 11105250553 in words is "eleven billion, one hundred five million, two hundred fifty thousand, five hundred fifty-three".