325443505631 has 4 divisors (see below), whose sum is σ = 335941683264. Its totient is φ = 314945328000.

The previous prime is 325443505603. The next prime is 325443505633. The reversal of 325443505631 is 136505344523.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 325443505631 - 2²⁶ = 325376396767 is a prime.

It is a super-2 number, since 2×325443505631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325443505633) 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, 5249088770 + ... + 5249088831.

It is an arithmetic number, because the mean of its divisors is an integer number (83985420816).

Almost surely, 2^325443505631 is an apocalyptic number.

325443505631 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

325443505631 is a deficient number, since it is larger than the sum of its proper divisors (10498177633).

325443505631 is a wasteful number, since it uses less digits than its factorization.

325443505631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10498177632.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 325443505631 in words is "three hundred twenty-five billion, four hundred forty-three million, five hundred five thousand, six hundred thirty-one".