56864443 has 2 divisors, whose sum is σ = 56864444. Its totient is φ = 56864442.

The previous prime is 56864413. The next prime is 56864459. The reversal of 56864443 is 34446865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56864443 - 2²⁵ = 23310011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56864396 and 56864405.

It is not a weakly prime, because it can be changed into another prime (56864413) 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, 28432221 + 28432222.

It is an arithmetic number, because the mean of its divisors is an integer number (28432222).

Almost surely, 2^56864443 is an apocalyptic number.

56864443 is a deficient number, since it is larger than the sum of its proper divisors (1).

56864443 is an equidigital number, since it uses as much as digits as its factorization.

56864443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 40.

The square root of 56864443 is about 7540.8516097322. The cubic root of 56864443 is about 384.5447883464.

The spelling of 56864443 in words is "fifty-six million, eight hundred sixty-four thousand, four hundred forty-three".