11261225 has 12 divisors (see below), whose sum is σ = 14785884. Its totient is φ = 8478720.

The previous prime is 11261221. The next prime is 11261231. The reversal of 11261225 is 52216211.

It can be written as a sum of positive squares in 6 ways, for example, as 692224 + 10569001 = 832^2 + 3251^2 .

It is not a de Polignac number, because 11261225 - 2² = 11261221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11261197 and 11261206.

It is not an unprimeable number, because it can be changed into a prime (11261221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12824 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (1232157).

Almost surely, 2^11261225 is an apocalyptic number.

It is an amenable number.

11261225 is a deficient number, since it is larger than the sum of its proper divisors (3524659).

11261225 is a wasteful number, since it uses less digits than its factorization.

11261225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26524 (or 26519 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 11261225 is about 3355.7748732595. The cubic root of 11261225 is about 224.1447366566.

Adding to 11261225 its reverse (52216211), we get a palindrome (63477436).

The spelling of 11261225 in words is "eleven million, two hundred sixty-one thousand, two hundred twenty-five".