321425 has 24 divisors (see below), whose sum is σ = 458304. Its totient is φ = 221760.

The previous prime is 321413. The next prime is 321427. The reversal of 321425 is 524123.

It is not a de Polignac number, because 321425 - 2⁸ = 321169 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321425.

It is not an unprimeable number, because it can be changed into a prime (321427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7454 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (19096).

2³²¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

321425 is a deficient number, since it is larger than the sum of its proper divisors (136879).

321425 is a wasteful number, since it uses less digits than its factorization.

321425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 84 counting only the distinct ones).

The product of its digits is 240, while the sum is 17.

The square root of 321425 is about 566.9435598011. The cubic root of 321425 is about 68.5004173523.

Adding to 321425 its reverse (524123), we get a palindrome (845548).

The spelling of 321425 in words is "three hundred twenty-one thousand, four hundred twenty-five".