253889017 has 2 divisors, whose sum is σ = 253889018. Its totient is φ = 253889016.

The previous prime is 253888993. The next prime is 253889023. The reversal of 253889017 is 710988352.

253889017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227889216 + 25999801 = 15096^2 + 5099^2 .

It is a cyclic number.

It is not a de Polignac number, because 253889017 - 2²⁷ = 119671289 is a prime.

It is not a weakly prime, because it can be changed into another prime (253883017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126944508 + 126944509.

It is an arithmetic number, because the mean of its divisors is an integer number (126944509).

Almost surely, 2^253889017 is an apocalyptic number.

It is an amenable number.

253889017 is a deficient number, since it is larger than the sum of its proper divisors (1).

253889017 is an equidigital number, since it uses as much as digits as its factorization.

253889017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 253889017 is about 15933.8952237047. The cubic root of 253889017 is about 633.2103010934.

The spelling of 253889017 in words is "two hundred fifty-three million, eight hundred eighty-nine thousand, seventeen".