11666725 has 24 divisors (see below), whose sum is σ = 16675520. Its totient is φ = 7931520.

The previous prime is 11666701. The next prime is 11666737. The reversal of 11666725 is 52766611.

It is a happy number.

It is not a de Polignac number, because 11666725 - 2⁵ = 11666693 is a prime.

It is a super-2 number, since 2×11666725² = 272224944451250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28321 + ... + 28729.

Almost surely, 2^11666725 is an apocalyptic number.

It is an amenable number.

11666725 is a deficient number, since it is larger than the sum of its proper divisors (5008795).

11666725 is a wasteful number, since it uses less digits than its factorization.

11666725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 11666725 is about 3415.6587944348. The cubic root of 11666725 is about 226.8034485363.

The spelling of 11666725 in words is "eleven million, six hundred sixty-six thousand, seven hundred twenty-five".