252007321 has 2 divisors, whose sum is σ = 252007322. Its totient is φ = 252007320.

The previous prime is 252007313. The next prime is 252007331. The reversal of 252007321 is 123700252.

252007321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222457225 + 29550096 = 14915^2 + 5436^2 .

It is a cyclic number.

It is not a de Polignac number, because 252007321 - 2³ = 252007313 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252007292 and 252007301.

It is not a weakly prime, because it can be changed into another prime (252007331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126003660 + 126003661.

It is an arithmetic number, because the mean of its divisors is an integer number (126003661).

Almost surely, 2^252007321 is an apocalyptic number.

It is an amenable number.

252007321 is a deficient number, since it is larger than the sum of its proper divisors (1).

252007321 is an equidigital number, since it uses as much as digits as its factorization.

252007321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 252007321 is about 15874.7384545384. The cubic root of 252007321 is about 631.6420763821.

Adding to 252007321 its reverse (123700252), we get a palindrome (375707573).

The spelling of 252007321 in words is "two hundred fifty-two million, seven thousand, three hundred twenty-one".