11811025 has 12 divisors (see below), whose sum is σ = 14987632. Its totient is φ = 9228240.

The previous prime is 11811001. The next prime is 11811043. The reversal of 11811025 is 52011811.

It is a happy number.

It is not a de Polignac number, because 11811025 - 2¹¹ = 11808977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11810993 and 11811011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4419 + ... + 6568.

Almost surely, 2^11811025 is an apocalyptic number.

It is an amenable number.

11811025 is a deficient number, since it is larger than the sum of its proper divisors (3176607).

11811025 is a wasteful number, since it uses less digits than its factorization.

11811025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040 (or 11035 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 11811025 is about 3436.7171835925. The cubic root of 11811025 is about 227.7346931972.

Adding to 11811025 its reverse (52011811), we get a palindrome (63822836).

The spelling of 11811025 in words is "eleven million, eight hundred eleven thousand, twenty-five".