253959281 has 2 divisors, whose sum is σ = 253959282. Its totient is φ = 253959280.

The previous prime is 253959271. The next prime is 253959317. The reversal of 253959281 is 182959352.

253959281 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., 155850256 + 98109025 = 12484^2 + 9905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253959281 is a prime.

It is a super-2 number, since 2×253959281² = 128990632812073922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (253959271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126979640 + 126979641.

It is an arithmetic number, because the mean of its divisors is an integer number (126979641).

Almost surely, 2^253959281 is an apocalyptic number.

It is an amenable number.

253959281 is a deficient number, since it is larger than the sum of its proper divisors (1).

253959281 is an equidigital number, since it uses as much as digits as its factorization.

253959281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 253959281 is about 15936.0999306606. The cubic root of 253959281 is about 633.2687095342.

The spelling of 253959281 in words is "two hundred fifty-three million, nine hundred fifty-nine thousand, two hundred eighty-one".