325220015 has 8 divisors (see below), whose sum is σ = 390372048. Its totient is φ = 260104000.

The previous prime is 325220009. The next prime is 325220029. The reversal of 325220015 is 510022523.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 325220015 - 2²⁰ = 324171439 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 18515 + ... + 31515.

It is an arithmetic number, because the mean of its divisors is an integer number (48796506).

Almost surely, 2^325220015 is an apocalyptic number.

325220015 is a deficient number, since it is larger than the sum of its proper divisors (65152033).

325220015 is a wasteful number, since it uses less digits than its factorization.

325220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 325220015 is about 18033.8574631164. The cubic root of 325220015 is about 687.6895450926.

Adding to 325220015 its reverse (510022523), we get a palindrome (835242538).

The spelling of 325220015 in words is "three hundred twenty-five million, two hundred twenty thousand, fifteen".