325205105 has 8 divisors (see below), whose sum is σ = 390365352. Its totient is φ = 260084608.

The previous prime is 325205081. The next prime is 325205107. The reversal of 325205105 is 501502523.

It can be written as a sum of positive squares in 4 ways, for example, as 130965136 + 194239969 = 11444^2 + 13937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325205105 is a prime.

It is a super-2 number, since 2×325205105² = 211516720636122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325205107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12797 + ... + 28533.

It is an arithmetic number, because the mean of its divisors is an integer number (48795669).

Almost surely, 2^325205105 is an apocalyptic number.

It is an amenable number.

325205105 is a deficient number, since it is larger than the sum of its proper divisors (65160247).

325205105 is a wasteful number, since it uses less digits than its factorization.

325205105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19875.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 325205105 is about 18033.4440692842. Note that the first 3 decimals coincide. The cubic root of 325205105 is about 687.6790356863.

Adding to 325205105 its reverse (501502523), we get a palindrome (826707628).

The spelling of 325205105 in words is "three hundred twenty-five million, two hundred five thousand, one hundred five".