56811343 has 2 divisors, whose sum is σ = 56811344. Its totient is φ = 56811342.

The previous prime is 56811341. The next prime is 56811347. The reversal of 56811343 is 34311865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56811343 - 2¹ = 56811341 is a prime.

Together with 56811341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56811341) 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 as a sum of consecutive naturals, namely, 28405671 + 28405672.

It is an arithmetic number, because the mean of its divisors is an integer number (28405672).

Almost surely, 2^56811343 is an apocalyptic number.

56811343 is a deficient number, since it is larger than the sum of its proper divisors (1).

56811343 is an equidigital number, since it uses as much as digits as its factorization.

56811343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 56811343 is about 7537.3299649146. The cubic root of 56811343 is about 384.4250551333.

It can be divided in two parts, 568 and 11343, that added together give a palindrome (11911).

The spelling of 56811343 in words is "fifty-six million, eight hundred eleven thousand, three hundred forty-three".