11865725 has 6 divisors (see below), whose sum is σ = 14713530. Its totient is φ = 9492560.

The previous prime is 11865713. The next prime is 11865739. The reversal of 11865725 is 52756811.

It can be written as a sum of positive squares in 3 ways, for example, as 217156 + 11648569 = 466^2 + 3413^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11865725 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237290 + ... + 237339.

It is an arithmetic number, because the mean of its divisors is an integer number (2452255).

Almost surely, 2^11865725 is an apocalyptic number.

It is an amenable number.

11865725 is a deficient number, since it is larger than the sum of its proper divisors (2847805).

11865725 is an equidigital number, since it uses as much as digits as its factorization.

11865725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474639 (or 474634 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 11865725 is about 3444.6661666989. Note that the first 3 decimals coincide. The cubic root of 11865725 is about 228.0857185132.

The spelling of 11865725 in words is "eleven million, eight hundred sixty-five thousand, seven hundred twenty-five".