268563601 has 2 divisors, whose sum is σ = 268563602. Its totient is φ = 268563600.

The previous prime is 268563587. The next prime is 268563679. The reversal of 268563601 is 106365862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256032001 + 12531600 = 16001^2 + 3540^2 .

It is a cyclic number.

It is not a de Polignac number, because 268563601 - 2⁹ = 268563089 is a prime.

It is not a weakly prime, because it can be changed into another prime (268563401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134281800 + 134281801.

It is an arithmetic number, because the mean of its divisors is an integer number (134281801).

Almost surely, 2^268563601 is an apocalyptic number.

It is an amenable number.

268563601 is a deficient number, since it is larger than the sum of its proper divisors (1).

268563601 is an equidigital number, since it uses as much as digits as its factorization.

268563601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 268563601 is about 16387.9102084433. The cubic root of 268563601 is about 645.1822100042.

The spelling of 268563601 in words is "two hundred sixty-eight million, five hundred sixty-three thousand, six hundred one".