56122161 has 8 divisors (see below), whose sum is σ = 74864160. Its totient is φ = 37397472.

The previous prime is 56122141. The next prime is 56122169. The reversal of 56122161 is 16122165.

56122161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56122161 - 2⁶ = 56122097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56122169) 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, 10525 + ... + 14933.

It is an arithmetic number, because the mean of its divisors is an integer number (9358020).

Almost surely, 2^56122161 is an apocalyptic number.

It is an amenable number.

56122161 is a deficient number, since it is larger than the sum of its proper divisors (18741999).

56122161 is a wasteful number, since it uses less digits than its factorization.

56122161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655.

The product of its digits is 720, while the sum is 24.

The square root of 56122161 is about 7491.4725521756. The cubic root of 56122161 is about 382.8642316350.

It can be divided in two parts, 561 and 22161, that added together give a palindrome (22722).

The spelling of 56122161 in words is "fifty-six million, one hundred twenty-two thousand, one hundred sixty-one".