325500305581 has 4 divisors (see below), whose sum is σ = 355091242464. Its totient is φ = 295909368700.

The previous prime is 325500305573. The next prime is 325500305621. The reversal of 325500305581 is 185503005523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 325500305581 - 2³ = 325500305573 is a prime.

It is a super-2 number, since 2×325500305581² (a number of 24 digits) contains 22 as substring.

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 325500305581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325500335581) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14795468425 + ... + 14795468446.

It is an arithmetic number, because the mean of its divisors is an integer number (88772810616).

Almost surely, 2^325500305581 is an apocalyptic number.

It is an amenable number.

325500305581 is a deficient number, since it is larger than the sum of its proper divisors (29590936883).

325500305581 is a wasteful number, since it uses less digits than its factorization.

325500305581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29590936882.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 325500305581 in words is "three hundred twenty-five billion, five hundred million, three hundred five thousand, five hundred eighty-one".