325540 has 24 divisors (see below), whose sum is σ = 702072. Its totient is φ = 126720.

The previous prime is 325537. The next prime is 325541. The reversal of 325540 is 45523.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5184 + 320356 = 72^2 + 566^2 .

It is not an unprimeable number, because it can be changed into a prime (325541) 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 in 7 ways as a sum of consecutive naturals, for example, 622 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (29253).

2³²⁵⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351036).

325540 is an abundant number, since it is smaller than the sum of its proper divisors (376532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325540 is a wasteful number, since it uses less digits than its factorization.

325540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 325540 is about 570.5611273124. The cubic root of 325540 is about 68.7915011135.

The spelling of 325540 in words is "three hundred twenty-five thousand, five hundred forty".