325029021 has 4 divisors (see below), whose sum is σ = 433372032. Its totient is φ = 216686012.

The previous prime is 325028971. The next prime is 325029037. The reversal of 325029021 is 120920523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325029021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 325028982 and 325029000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325029821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54171501 + ... + 54171506.

It is an arithmetic number, because the mean of its divisors is an integer number (108343008).

Almost surely, 2^325029021 is an apocalyptic number.

It is an amenable number.

325029021 is a deficient number, since it is larger than the sum of its proper divisors (108343011).

325029021 is a wasteful number, since it uses less digits than its factorization.

325029021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108343010.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 325029021 is about 18028.5612570721. The cubic root of 325029021 is about 687.5548974785.

Adding to 325029021 its reverse (120920523), we get a palindrome (445949544).

The spelling of 325029021 in words is "three hundred twenty-five million, twenty-nine thousand, twenty-one".