11656725 has 12 divisors (see below), whose sum is σ = 19272576. Its totient is φ = 6216880.

The previous prime is 11656721. The next prime is 11656759. The reversal of 11656725 is 52765611.

It is not a de Polignac number, because 11656725 - 2² = 11656721 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11656721) 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 11 ways as a sum of consecutive naturals, for example, 77637 + ... + 77786.

It is an arithmetic number, because the mean of its divisors is an integer number (1606048).

Almost surely, 2^11656725 is an apocalyptic number.

11656725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11656725 is a deficient number, since it is larger than the sum of its proper divisors (7615851).

11656725 is a wasteful number, since it uses less digits than its factorization.

11656725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155436 (or 155431 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 11656725 is about 3414.1946341707. The cubic root of 11656725 is about 226.7386293518.

The spelling of 11656725 in words is "eleven million, six hundred fifty-six thousand, seven hundred twenty-five".