11660625 has 40 divisors (see below), whose sum is σ = 21618080. Its totient is φ = 6210000.

The previous prime is 11660603. The next prime is 11660629. The reversal of 11660625 is 52606611.

It is a happy number.

It is not a de Polignac number, because 11660625 - 2⁷ = 11660497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11660629) 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 39 ways as a sum of consecutive naturals, for example, 16530 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (540452).

Almost surely, 2^11660625 is an apocalyptic number.

11660625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11660625 is a deficient number, since it is larger than the sum of its proper divisors (9957455).

11660625 is an frugal number, since it uses more digits than its factorization.

11660625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11660625 is about 3414.7657313497. The cubic root of 11660625 is about 226.7639132417.

The spelling of 11660625 in words is "eleven million, six hundred sixty thousand, six hundred twenty-five".