11105998225 has 27 divisors (see below), whose sum is σ = 16025158011. Its totient is φ = 7613012400.

The previous prime is 11105998193. The next prime is 11105998229. The reversal of 11105998225 is 52289950111.

The square root of 11105998225 is 105385.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3998159361 + 7107838864 = 63231^2 + 84308^2 .

It is not a de Polignac number, because 11105998225 - 2⁵ = 11105998193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11105998229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3686970 + ... + 3689980.

Almost surely, 2^11105998225 is an apocalyptic number.

11105998225 is the 105385-th square number.

11105998225 is the 52693-rd centered octagonal number.

It is an amenable number.

11105998225 is a deficient number, since it is larger than the sum of its proper divisors (4919159786).

11105998225 is an frugal number, since it uses more digits than its factorization.

11105998225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 43.

The spelling of 11105998225 in words is "eleven billion, one hundred five million, nine hundred ninety-eight thousand, two hundred twenty-five".