325665511625 has 8 divisors (see below), whose sum is σ = 406430558664. Its totient is φ = 260532409200.

The previous prime is 325665511601. The next prime is 325665511631. The reversal of 325665511625 is 526115566523.

It can be written as a sum of positive squares in 4 ways, for example, as 78158266624 + 247507245001 = 279568^2 + 497501^2 .

It is not a de Polignac number, because 325665511625 - 2¹² = 325665507529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 325665511625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302661922 + ... + 1302662171.

It is an arithmetic number, because the mean of its divisors is an integer number (50803819833).

Almost surely, 2^325665511625 is an apocalyptic number.

It is an amenable number.

325665511625 is a deficient number, since it is larger than the sum of its proper divisors (80765047039).

325665511625 is an equidigital number, since it uses as much as digits as its factorization.

325665511625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605324108 (or 2605324098 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 47.

The spelling of 325665511625 in words is "three hundred twenty-five billion, six hundred sixty-five million, five hundred eleven thousand, six hundred twenty-five".