56216611 has 8 divisors (see below), whose sum is σ = 64555200. Its totient is φ = 48416040.

The previous prime is 56216599. The next prime is 56216621. The reversal of 56216611 is 11661265.

56216611 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 a cyclic number.

It is not a de Polignac number, because 56216611 - 2⁹ = 56216099 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 56216611.

It is not an unprimeable number, because it can be changed into a prime (56216621) 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, 134281 + ... + 134698.

It is an arithmetic number, because the mean of its divisors is an integer number (8069400).

Almost surely, 2^56216611 is an apocalyptic number.

56216611 is a deficient number, since it is larger than the sum of its proper divisors (8338589).

56216611 is a wasteful number, since it uses less digits than its factorization.

56216611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269009.

The product of its digits is 2160, while the sum is 28.

The square root of 56216611 is about 7497.7737362500. The cubic root of 56216611 is about 383.0788899158.

Adding to 56216611 its reverse (11661265), we get a palindrome (67877876).

The spelling of 56216611 in words is "fifty-six million, two hundred sixteen thousand, six hundred eleven".