11591825 has 12 divisors (see below), whose sum is σ = 16427520. Its totient is φ = 7948560.

The previous prime is 11591821. The next prime is 11591831. The reversal of 11591825 is 52819511.

It is not a de Polignac number, because 11591825 - 2² = 11591821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11591791 and 11591800.

It is not an unprimeable number, because it can be changed into a prime (11591821) 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, 32945 + ... + 33294.

It is an arithmetic number, because the mean of its divisors is an integer number (1368960).

Almost surely, 2^11591825 is an apocalyptic number.

It is an amenable number.

11591825 is a deficient number, since it is larger than the sum of its proper divisors (4835695).

11591825 is an equidigital number, since it uses as much as digits as its factorization.

11591825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66256 (or 66251 counting only the distinct ones).

The product of its digits is 3600, while the sum is 32.

The square root of 11591825 is about 3404.6769303416. The cubic root of 11591825 is about 226.3170492040.

The spelling of 11591825 in words is "eleven million, five hundred ninety-one thousand, eight hundred twenty-five".