425443 has 2 divisors, whose sum is σ = 425444. Its totient is φ = 425442.

The previous prime is 425441. The next prime is 425471. The reversal of 425443 is 344524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425443 - 2¹ = 425441 is a prime.

Together with 425441, it forms a pair of twin primes.

It is equal to p₃₅₈₁₅ and since 425443 and 35815 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (425441) by changing a digit.

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 as a sum of consecutive naturals, namely, 212721 + 212722.

It is an arithmetic number, because the mean of its divisors is an integer number (212722).

2⁴²⁵⁴⁴³ is an apocalyptic number.

425443 is a deficient number, since it is larger than the sum of its proper divisors (1).

425443 is an equidigital number, since it uses as much as digits as its factorization.

425443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 22.

The square root of 425443 is about 652.2599175175. The cubic root of 425443 is about 75.2108437471.

Adding to 425443 its reverse (344524), we get a palindrome (769967).

It can be divided in two parts, 425 and 443, that added together give a palindrome (868).

The spelling of 425443 in words is "four hundred twenty-five thousand, four hundred forty-three".