56711765 has 16 divisors (see below), whose sum is σ = 74393856. Its totient is φ = 41160000.

The previous prime is 56711731. The next prime is 56711771.

56711765 is nontrivially palindromic in base 10.

56711765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56711765 - 2¹⁴ = 56695381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40619 + ... + 41991.

It is an arithmetic number, because the mean of its divisors is an integer number (4649616).

Almost surely, 2^56711765 is an apocalyptic number.

56711765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56711765 is a deficient number, since it is larger than the sum of its proper divisors (17682091).

56711765 is a wasteful number, since it uses less digits than its factorization.

56711765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140.

The product of its digits is 44100, while the sum is 38.

The square root of 56711765 is about 7530.7214129856. The cubic root of 56711765 is about 384.2003191117.

The spelling of 56711765 in words is "fifty-six million, seven hundred eleven thousand, seven hundred sixty-five".