325013220040 has 32 divisors (see below), whose sum is σ = 733449745080. Its totient is φ = 129619510272.

The previous prime is 325013219981. The next prime is 325013220067. The reversal of 325013220040 is 40022310523.

It can be written as a sum of positive squares in 4 ways, for example, as 221150110756 + 103863109284 = 470266^2 + 322278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 325013219993 and 325013220020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12041907 + ... + 12068866.

Almost surely, 2^325013220040 is an apocalyptic number.

It is an amenable number.

325013220040 is an abundant number, since it is smaller than the sum of its proper divisors (408436525040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325013220040 is a wasteful number, since it uses less digits than its factorization.

325013220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24111121 (or 24111117 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 325013220040 its reverse (40022310523), we get a palindrome (365035530563).

The spelling of 325013220040 in words is "three hundred twenty-five billion, thirteen million, two hundred twenty thousand, forty".