56585161 has 4 divisors (see below), whose sum is σ = 56739712. Its totient is φ = 56430612.

The previous prime is 56585159. The next prime is 56585171. The reversal of 56585161 is 16158565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56585161 - 2¹ = 56585159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56585161.

It is not an unprimeable number, because it can be changed into a prime (56585101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76725 + ... + 77458.

It is an arithmetic number, because the mean of its divisors is an integer number (14184928).

Almost surely, 2^56585161 is an apocalyptic number.

It is an amenable number.

56585161 is a deficient number, since it is larger than the sum of its proper divisors (154551).

56585161 is a wasteful number, since it uses less digits than its factorization.

56585161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154550.

The product of its digits is 36000, while the sum is 37.

The square root of 56585161 is about 7522.3108816374. The cubic root of 56585161 is about 383.9142083552.

The spelling of 56585161 in words is "fifty-six million, five hundred eighty-five thousand, one hundred sixty-one".