11806525 has 6 divisors (see below), whose sum is σ = 14640122. Its totient is φ = 9445200.

The previous prime is 11806513. The next prime is 11806537. The reversal of 11806525 is 52560811.

It is an interprime number because it is at equal distance from previous prime (11806513) and next prime (11806537).

It can be written as a sum of positive squares in 3 ways, for example, as 116964 + 11689561 = 342^2 + 3419^2 .

It is not a de Polignac number, because 11806525 - 2⁷ = 11806397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11806493 and 11806502.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 236106 + ... + 236155.

Almost surely, 2^11806525 is an apocalyptic number.

It is an amenable number.

11806525 is a deficient number, since it is larger than the sum of its proper divisors (2833597).

11806525 is an equidigital number, since it uses as much as digits as its factorization.

11806525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472271 (or 472266 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 11806525 is about 3436.0624266739. The cubic root of 11806525 is about 227.7057672206.

The spelling of 11806525 in words is "eleven million, eight hundred six thousand, five hundred twenty-five".