268566057 has 8 divisors (see below), whose sum is σ = 397875680. Its totient is φ = 179044020.

The previous prime is 268566049. The next prime is 268566061. The reversal of 268566057 is 750665862.

It is not a de Polignac number, because 268566057 - 2³ = 268566049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268566047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973419 + ... + 4973472.

It is an arithmetic number, because the mean of its divisors is an integer number (49734460).

Almost surely, 2^268566057 is an apocalyptic number.

268566057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

268566057 is a deficient number, since it is larger than the sum of its proper divisors (129309623).

268566057 is an equidigital number, since it uses as much as digits as its factorization.

268566057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946900 (or 9946894 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 268566057 is about 16387.9851415603. The cubic root of 268566057 is about 645.1841767173.

The spelling of 268566057 in words is "two hundred sixty-eight million, five hundred sixty-six thousand, fifty-seven".