268525393 has 2 divisors, whose sum is σ = 268525394. Its totient is φ = 268525392.

The previous prime is 268525363. The next prime is 268525409. The reversal of 268525393 is 393525862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170772624 + 97752769 = 13068^2 + 9887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268525393 is a prime.

It is not a weakly prime, because it can be changed into another prime (268525363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134262696 + 134262697.

It is an arithmetic number, because the mean of its divisors is an integer number (134262697).

Almost surely, 2^268525393 is an apocalyptic number.

It is an amenable number.

268525393 is a deficient number, since it is larger than the sum of its proper divisors (1).

268525393 is an equidigital number, since it uses as much as digits as its factorization.

268525393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 268525393 is about 16386.7444295687. The cubic root of 268525393 is about 645.1516122974.

The spelling of 268525393 in words is "two hundred sixty-eight million, five hundred twenty-five thousand, three hundred ninety-three".