253308068 has 72 divisors (see below), whose sum is σ = 510314616. Its totient is φ = 109278720.

The previous prime is 253308067. The next prime is 253308079. The reversal of 253308068 is 860803352.

It can be written as a sum of positive squares in 4 ways, for example, as 51724864 + 201583204 = 7192^2 + 14198^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253308067) 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 in 23 ways as a sum of consecutive naturals, for example, 1848896 + ... + 1849032.

It is an arithmetic number, because the mean of its divisors is an integer number (7087703).

Almost surely, 2^253308068 is an apocalyptic number.

It is an amenable number.

253308068 is an abundant number, since it is smaller than the sum of its proper divisors (257006548).

253308068 is a wasteful number, since it uses less digits than its factorization.

253308068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 253308068 is about 15915.6548090237. The cubic root of 253308068 is about 632.7269615170.

The spelling of 253308068 in words is "two hundred fifty-three million, three hundred eight thousand, sixty-eight".