325861 has 2 divisors, whose sum is σ = 325862. Its totient is φ = 325860.

The previous prime is 325849. The next prime is 325877. The reversal of 325861 is 168523.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 961 = 570^2 + 31^2 .

It is an emirp because it is prime and its reverse (168523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325861 - 2⁹ = 325349 is a prime.

325861 is a lucky number.

It is equal to p₂₈₀₇₈ and since 325861 and 28078 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325891) 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, 162930 + 162931.

It is an arithmetic number, because the mean of its divisors is an integer number (162931).

2³²⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

325861 is a deficient number, since it is larger than the sum of its proper divisors (1).

325861 is an equidigital number, since it uses as much as digits as its factorization.

325861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 325861 is about 570.8423600260. The cubic root of 325861 is about 68.8141043960.

The spelling of 325861 in words is "three hundred twenty-five thousand, eight hundred sixty-one".