56443 has 2 divisors, whose sum is σ = 56444. Its totient is φ = 56442.
The previous prime is 56437. The next prime is 56453. The reversal of 56443 is 34465.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 56443 - 29 = 55931 is a prime.
It is a plaindrome in base 15.
It is not a weakly prime, because it can be changed into another prime (56453) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28221 + 28222.
It is an arithmetic number, because the mean of its divisors is an integer number (28222).
256443 is an apocalyptic number.
56443 is a deficient number, since it is larger than the sum of its proper divisors (1).
56443 is an equidigital number, since it uses as much as digits as its factorization.
56443 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1440, while the sum is 22.
The square root of 56443 is about 237.5773558233. The cubic root of 56443 is about 38.3592431429.
Adding to 56443 its sum of digits (22), we get a palindrome (56465).
The spelling of 56443 in words is "fifty-six thousand, four hundred forty-three".
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