253613317 has 2 divisors, whose sum is σ = 253613318. Its totient is φ = 253613316.

The previous prime is 253613309. The next prime is 253613333. The reversal of 253613317 is 713316352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144744961 + 108868356 = 12031^2 + 10434^2 .

It is a cyclic number.

It is not a de Polignac number, because 253613317 - 2³ = 253613309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253613377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126806658 + 126806659.

It is an arithmetic number, because the mean of its divisors is an integer number (126806659).

Almost surely, 2^253613317 is an apocalyptic number.

It is an amenable number.

253613317 is a deficient number, since it is larger than the sum of its proper divisors (1).

253613317 is an equidigital number, since it uses as much as digits as its factorization.

253613317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 253613317 is about 15925.2415052331. The cubic root of 253613317 is about 632.9810154638.

Adding to 253613317 its reverse (713316352), we get a palindrome (966929669).

The spelling of 253613317 in words is "two hundred fifty-three million, six hundred thirteen thousand, three hundred seventeen".