268803253 has 2 divisors, whose sum is σ = 268803254. Its totient is φ = 268803252.

The previous prime is 268803221. The next prime is 268803307. The reversal of 268803253 is 352308862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264485169 + 4318084 = 16263^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 268803253 - 2⁵ = 268803221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268603253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134401626 + 134401627.

It is an arithmetic number, because the mean of its divisors is an integer number (134401627).

Almost surely, 2^268803253 is an apocalyptic number.

It is an amenable number.

268803253 is a deficient number, since it is larger than the sum of its proper divisors (1).

268803253 is an equidigital number, since it uses as much as digits as its factorization.

268803253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 268803253 is about 16395.2204315770. The cubic root of 268803253 is about 645.3740618137.

The spelling of 268803253 in words is "two hundred sixty-eight million, eight hundred three thousand, two hundred fifty-three".