325230021 has 24 divisors (see below), whose sum is σ = 487109376. Its totient is φ = 208883520.

The previous prime is 325229951. The next prime is 325230023. The reversal of 325230021 is 120032523.

It is not a de Polignac number, because 325230021 - 2⁷ = 325229893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 325229976 and 325230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325230023) 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, 62506 + ... + 67508.

It is an arithmetic number, because the mean of its divisors is an integer number (20296224).

Almost surely, 2^325230021 is an apocalyptic number.

325230021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

325230021 is a deficient number, since it is larger than the sum of its proper divisors (161879355).

325230021 is a wasteful number, since it uses less digits than its factorization.

325230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273 (or 5270 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 325230021 is about 18034.1348836034. The cubic root of 325230021 is about 687.6965977039.

Adding to 325230021 its reverse (120032523), we get a palindrome (445262544).

The spelling of 325230021 in words is "three hundred twenty-five million, two hundred thirty thousand, twenty-one".