56843865 has 24 divisors (see below), whose sum is σ = 106109640. Its totient is φ = 27984384.

The previous prime is 56843851. The next prime is 56843867. The reversal of 56843865 is 56834865.

56843865 is a `hidden beast` number, since 568 + 4 + 3 + 86 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 233289 + 56610576 = 483^2 + 7524^2 .

It is not a de Polignac number, because 56843865 - 2⁷ = 56843737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56843865.

It is not an unprimeable number, because it can be changed into a prime (56843867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48000 + ... + 49169.

It is an arithmetic number, because the mean of its divisors is an integer number (4421235).

Almost surely, 2^56843865 is an apocalyptic number.

It is an amenable number.

56843865 is a deficient number, since it is larger than the sum of its proper divisors (49265775).

56843865 is a wasteful number, since it uses less digits than its factorization.

56843865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97193 (or 97190 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 56843865 is about 7539.4870515175. The cubic root of 56843865 is about 384.4983966298.

The spelling of 56843865 in words is "fifty-six million, eight hundred forty-three thousand, eight hundred sixty-five".