325023021 has 12 divisors (see below), whose sum is σ = 470251548. Its totient is φ = 216324864.

The previous prime is 325022969. The next prime is 325023053. The reversal of 325023021 is 120320523.

It can be written as a sum of positive squares in 2 ways, for example, as 83064996 + 241958025 = 9114^2 + 15555^2 .

It is not a de Polignac number, because 325023021 - 2¹⁴ = 325006637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 325022985 and 325023003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325023071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23940 + ... + 34973.

It is an arithmetic number, because the mean of its divisors is an integer number (39187629).

Almost surely, 2^325023021 is an apocalyptic number.

It is an amenable number.

325023021 is a deficient number, since it is larger than the sum of its proper divisors (145228527).

325023021 is a wasteful number, since it uses less digits than its factorization.

325023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59532 (or 59529 counting only the distinct ones).

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

The square root of 325023021 is about 18028.3948536746. The cubic root of 325023021 is about 687.5506667232.

Adding to 325023021 its reverse (120320523), we get a palindrome (445343544).

The spelling of 325023021 in words is "three hundred twenty-five million, twenty-three thousand, twenty-one".