11105515252 has 18 divisors (see below), whose sum is σ = 21044624118. Its totient is φ = 5125622112.

The previous prime is 11105515243. The next prime is 11105515259. The reversal of 11105515252 is 25251550111.

It can be written as a sum of positive squares in 3 ways, for example, as 1080699876 + 10024815376 = 32874^2 + 100124^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11105515252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105515259) 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 in 5 ways as a sum of consecutive naturals, for example, 8213463 + ... + 8214814.

Almost surely, 2^11105515252 is an apocalyptic number.

It is an amenable number.

11105515252 is a deficient number, since it is larger than the sum of its proper divisors (9939108866).

11105515252 is a wasteful number, since it uses less digits than its factorization.

11105515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428307 (or 16428292 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 11105515252 in words is "eleven billion, one hundred five million, five hundred fifteen thousand, two hundred fifty-two".