325485509 has 2 divisors, whose sum is σ = 325485510. Its totient is φ = 325485508.

The previous prime is 325485469. The next prime is 325485521. The reversal of 325485509 is 905584523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210888484 + 114597025 = 14522^2 + 10705^2 .

It is a cyclic number.

It is not a de Polignac number, because 325485509 - 2²⁰ = 324436933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325481509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162742754 + 162742755.

It is an arithmetic number, because the mean of its divisors is an integer number (162742755).

Almost surely, 2^325485509 is an apocalyptic number.

It is an amenable number.

325485509 is a deficient number, since it is larger than the sum of its proper divisors (1).

325485509 is an equidigital number, since it uses as much as digits as its factorization.

325485509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 325485509 is about 18041.2169489755. The cubic root of 325485509 is about 687.8766264321.

The spelling of 325485509 in words is "three hundred twenty-five million, four hundred eighty-five thousand, five hundred nine".