56686161 has 8 divisors (see below), whose sum is σ = 86378944. Its totient is φ = 32392080.

The previous prime is 56686151. The next prime is 56686171. The reversal of 56686161 is 16168665.

56686161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56686151) and next prime (56686171).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56686161 - 2¹¹ = 56684113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56686151) 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 7 ways as a sum of consecutive naturals, for example, 1349650 + ... + 1349691.

It is an arithmetic number, because the mean of its divisors is an integer number (10797368).

Almost surely, 2^56686161 is an apocalyptic number.

It is an amenable number.

56686161 is a deficient number, since it is larger than the sum of its proper divisors (29692783).

56686161 is a wasteful number, since it uses less digits than its factorization.

56686161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699351.

The product of its digits is 51840, while the sum is 39.

The square root of 56686161 is about 7529.0212511322. The cubic root of 56686161 is about 384.1424913356.

The spelling of 56686161 in words is "fifty-six million, six hundred eighty-six thousand, one hundred sixty-one".