325440085551 has 24 divisors (see below), whose sum is σ = 526710489984. Its totient is φ = 177880293360.

The previous prime is 325440085513. The next prime is 325440085591. The reversal of 325440085551 is 155580044523.

It is not a de Polignac number, because 325440085551 - 2¹⁹ = 325439561263 is a prime.

It is a super-2 number, since 2×325440085551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325440085591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48124405 + ... + 48131166.

It is an arithmetic number, because the mean of its divisors is an integer number (21946270416).

Almost surely, 2^325440085551 is an apocalyptic number.

325440085551 is a deficient number, since it is larger than the sum of its proper divisors (201270404433).

325440085551 is a wasteful number, since it uses less digits than its factorization.

325440085551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96255611 (or 96255604 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 325440085551 in words is "three hundred twenty-five billion, four hundred forty million, eighty-five thousand, five hundred fifty-one".