325305405 has 12 divisors (see below), whose sum is σ = 563862780. Its totient is φ = 173496192.

The previous prime is 325305401. The next prime is 325305427. The reversal of 325305405 is 504503523.

325305405 is a `hidden beast` number, since 3 + 253 + 0 + 5 + 405 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 78375609 + 246929796 = 8853^2 + 15714^2 .

It is not a de Polignac number, because 325305405 - 2² = 325305401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325305401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3614460 + ... + 3614549.

It is an arithmetic number, because the mean of its divisors is an integer number (46988565).

Almost surely, 2^325305405 is an apocalyptic number.

It is an amenable number.

325305405 is a deficient number, since it is larger than the sum of its proper divisors (238557375).

325305405 is a wasteful number, since it uses less digits than its factorization.

325305405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229020 (or 7229017 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 325305405 is about 18036.2247989983. The cubic root of 325305405 is about 687.7497265789.

Adding to 325305405 its reverse (504503523), we get a palindrome (829808928).

The spelling of 325305405 in words is "three hundred twenty-five million, three hundred five thousand, four hundred five".