252253321 has 2 divisors, whose sum is σ = 252253322. Its totient is φ = 252253320.

The previous prime is 252253303. The next prime is 252253343. The reversal of 252253321 is 123352252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189447696 + 62805625 = 13764^2 + 7925^2 .

It is a cyclic number.

It is not a de Polignac number, because 252253321 - 2⁵ = 252253289 is a prime.

It is not a weakly prime, because it can be changed into another prime (252253381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126126660 + 126126661.

It is an arithmetic number, because the mean of its divisors is an integer number (126126661).

Almost surely, 2^252253321 is an apocalyptic number.

It is an amenable number.

252253321 is a deficient number, since it is larger than the sum of its proper divisors (1).

252253321 is an equidigital number, since it uses as much as digits as its factorization.

252253321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 25.

The square root of 252253321 is about 15882.4847237452. The cubic root of 252253321 is about 631.8475378976.

The spelling of 252253321 in words is "two hundred fifty-two million, two hundred fifty-three thousand, three hundred twenty-one".