268367563 has 4 divisors (see below), whose sum is σ = 268498120. Its totient is φ = 268237008.

The previous prime is 268367551. The next prime is 268367587. The reversal of 268367563 is 365763862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365763862 = 2 ⋅182881931.

It is a cyclic number.

It is not a de Polignac number, because 268367563 - 2⁵ = 268367531 is a prime.

It is a super-2 number, since 2×268367563² = 144042297741117938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268367543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62145 + ... + 66322.

It is an arithmetic number, because the mean of its divisors is an integer number (67124530).

Almost surely, 2^268367563 is an apocalyptic number.

268367563 is a deficient number, since it is larger than the sum of its proper divisors (130557).

268367563 is a wasteful number, since it uses less digits than its factorization.

268367563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130556.

The product of its digits is 1088640, while the sum is 46.

The square root of 268367563 is about 16381.9279390431. The cubic root of 268367563 is about 645.0251882077.

The spelling of 268367563 in words is "two hundred sixty-eight million, three hundred sixty-seven thousand, five hundred sixty-three".