325921 has 2 divisors, whose sum is σ = 325922. Its totient is φ = 325920.

The previous prime is 325901. The next prime is 325939. The reversal of 325921 is 129523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 12321 = 560^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 325921 - 2⁵ = 325889 is a prime.

It is equal to p₂₈₀₈₄ and since 325921 and 28084 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 325892 and 325901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162960 + 162961.

It is an arithmetic number, because the mean of its divisors is an integer number (162961).

2³²⁵⁹²¹ is an apocalyptic number.

It is an amenable number.

325921 is a deficient number, since it is larger than the sum of its proper divisors (1).

325921 is an equidigital number, since it uses as much as digits as its factorization.

325921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 22.

The square root of 325921 is about 570.8949115205. The cubic root of 325921 is about 68.8183276619.

The spelling of 325921 in words is "three hundred twenty-five thousand, nine hundred twenty-one".