425441 has 2 divisors, whose sum is σ = 425442. Its totient is φ = 425440.

The previous prime is 425423. The next prime is 425443. The reversal of 425441 is 144524.

425441 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355216 + 70225 = 596^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 425441 - 2⁶ = 425377 is a prime.

Together with 425443, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (425443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212720 + 212721.

It is an arithmetic number, because the mean of its divisors is an integer number (212721).

2⁴²⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

425441 is a deficient number, since it is larger than the sum of its proper divisors (1).

425441 is an equidigital number, since it uses as much as digits as its factorization.

425441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 20.

The square root of 425441 is about 652.2583843846. The cubic root of 425441 is about 75.2107258920.

Adding to 425441 its reverse (144524), we get a palindrome (569965).

The spelling of 425441 in words is "four hundred twenty-five thousand, four hundred forty-one".