252023321 has 8 divisors (see below), whose sum is σ = 280122624. Its totient is φ = 224788720.

The previous prime is 252023309. The next prime is 252023323. The reversal of 252023321 is 123320252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252023321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252023293 and 252023302.

It is not an unprimeable number, because it can be changed into a prime (252023323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215561 + ... + 216726.

It is an arithmetic number, because the mean of its divisors is an integer number (35015328).

Almost surely, 2^252023321 is an apocalyptic number.

It is an amenable number.

252023321 is a deficient number, since it is larger than the sum of its proper divisors (28099303).

252023321 is a wasteful number, since it uses less digits than its factorization.

252023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432351.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 252023321 is about 15875.2423918503. The cubic root of 252023321 is about 631.6554437972.

Adding to 252023321 its reverse (123320252), we get a palindrome (375343573).

The spelling of 252023321 in words is "two hundred fifty-two million, twenty-three thousand, three hundred twenty-one".