11816825 has 12 divisors (see below), whose sum is σ = 15290688. Its totient is φ = 9042000.

The previous prime is 11816821. The next prime is 11816837. The reversal of 11816825 is 52861811.

11816825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11816825 - 2² = 11816821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11816791 and 11816800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9701 + ... + 10850.

It is an arithmetic number, because the mean of its divisors is an integer number (1274224).

Almost surely, 2^11816825 is an apocalyptic number.

It is an amenable number.

11816825 is a deficient number, since it is larger than the sum of its proper divisors (3473863).

11816825 is a wasteful number, since it uses less digits than its factorization.

11816825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20584 (or 20579 counting only the distinct ones).

The product of its digits is 3840, while the sum is 32.

The square root of 11816825 is about 3437.5609085513. The cubic root of 11816825 is about 227.7719647315.

The spelling of 11816825 in words is "eleven million, eight hundred sixteen thousand, eight hundred twenty-five".