325965865 has 4 divisors (see below), whose sum is σ = 391159044. Its totient is φ = 260772688.

The previous prime is 325965863. The next prime is 325965889. The reversal of 325965865 is 568569523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 568569523 = 859 ⋅661897.

It can be written as a sum of positive squares in 2 ways, for example, as 179265321 + 146700544 = 13389^2 + 12112^2 .

It is a cyclic number.

It is not a de Polignac number, because 325965865 - 2¹ = 325965863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325965863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32596582 + ... + 32596591.

It is an arithmetic number, because the mean of its divisors is an integer number (97789761).

Almost surely, 2^325965865 is an apocalyptic number.

It is an amenable number.

325965865 is a deficient number, since it is larger than the sum of its proper divisors (65193179).

325965865 is an equidigital number, since it uses as much as digits as its factorization.

325965865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65193178.

The product of its digits is 1944000, while the sum is 49.

The square root of 325965865 is about 18054.5247791239. The cubic root of 325965865 is about 688.2148527022.

The spelling of 325965865 in words is "three hundred twenty-five million, nine hundred sixty-five thousand, eight hundred sixty-five".