325015665 has 32 divisors (see below), whose sum is σ = 561146880. Its totient is φ = 159687936.

The previous prime is 325015657. The next prime is 325015693. The reversal of 325015665 is 566510523.

It is not a de Polignac number, because 325015665 - 2³ = 325015657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118176 + ... + 120894.

It is an arithmetic number, because the mean of its divisors is an integer number (17535840).

Almost surely, 2^325015665 is an apocalyptic number.

It is an amenable number.

325015665 is a deficient number, since it is larger than the sum of its proper divisors (236131215).

325015665 is a wasteful number, since it uses less digits than its factorization.

325015665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 325015665 is about 18028.1908410134. The cubic root of 325015665 is about 687.5454797462.

It can be divided in two parts, 3250 and 15665, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 325015665 in words is "three hundred twenty-five million, fifteen thousand, six hundred sixty-five".