11605725 has 18 divisors (see below), whose sum is σ = 20787546. Its totient is φ = 6189600.

The previous prime is 11605723. The next prime is 11605729. The reversal of 11605725 is 52750611.

11605725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 133956 + 11471769 = 366^2 + 3387^2 .

It is not a de Polignac number, because 11605725 - 2¹ = 11605723 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11605721) 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 17 ways as a sum of consecutive naturals, for example, 25566 + ... + 26015.

Almost surely, 2^11605725 is an apocalyptic number.

11605725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11605725 is a deficient number, since it is larger than the sum of its proper divisors (9181821).

11605725 is a wasteful number, since it uses less digits than its factorization.

11605725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51597 (or 51589 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 11605725 is about 3406.7176284512. The cubic root of 11605725 is about 226.4074735741.

The spelling of 11605725 in words is "eleven million, six hundred five thousand, seven hundred twenty-five".