268254557 has 2 divisors, whose sum is σ = 268254558. Its totient is φ = 268254556.

The previous prime is 268254527. The next prime is 268254617. The reversal of 268254557 is 755452862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252778201 + 15476356 = 15899^2 + 3934^2 .

It is a cyclic number.

It is not a de Polignac number, because 268254557 - 2¹² = 268250461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268254527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134127278 + 134127279.

It is an arithmetic number, because the mean of its divisors is an integer number (134127279).

Almost surely, 2^268254557 is an apocalyptic number.

It is an amenable number.

268254557 is a deficient number, since it is larger than the sum of its proper divisors (1).

268254557 is an equidigital number, since it uses as much as digits as its factorization.

268254557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672000, while the sum is 44.

The square root of 268254557 is about 16378.4784702365. The cubic root of 268254557 is about 644.9346383300.

The spelling of 268254557 in words is "two hundred sixty-eight million, two hundred fifty-four thousand, five hundred fifty-seven".