253813289 has 2 divisors, whose sum is σ = 253813290. Its totient is φ = 253813288.

The previous prime is 253813279. The next prime is 253813369. The reversal of 253813289 is 982318352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253350889 + 462400 = 15917^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 253813289 - 2²⁴ = 237036073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253813279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126906644 + 126906645.

It is an arithmetic number, because the mean of its divisors is an integer number (126906645).

Almost surely, 2^253813289 is an apocalyptic number.

It is an amenable number.

253813289 is a deficient number, since it is larger than the sum of its proper divisors (1).

253813289 is an equidigital number, since it uses as much as digits as its factorization.

253813289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 253813289 is about 15931.5187286084. The cubic root of 253813289 is about 633.1473385195.

The spelling of 253813289 in words is "two hundred fifty-three million, eight hundred thirteen thousand, two hundred eighty-nine".