253246489 has 2 divisors, whose sum is σ = 253246490. Its totient is φ = 253246488.

The previous prime is 253246453. The next prime is 253246493. The reversal of 253246489 is 984642352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245956489 + 7290000 = 15683^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 253246489 - 2⁷ = 253246361 is a prime.

It is not a weakly prime, because it can be changed into another prime (253246439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126623244 + 126623245.

It is an arithmetic number, because the mean of its divisors is an integer number (126623245).

Almost surely, 2^253246489 is an apocalyptic number.

It is an amenable number.

253246489 is a deficient number, since it is larger than the sum of its proper divisors (1).

253246489 is an equidigital number, since it uses as much as digits as its factorization.

253246489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 43.

The square root of 253246489 is about 15913.7201496068. The cubic root of 253246489 is about 632.6756855463.

It can be divided in two parts, 25324 and 6489, that added together give a palindrome (31813).

The spelling of 253246489 in words is "two hundred fifty-three million, two hundred forty-six thousand, four hundred eighty-nine".