268791025 has 6 divisors (see below), whose sum is σ = 333300902. Its totient is φ = 215032800.

The previous prime is 268791013. The next prime is 268791077. The reversal of 268791025 is 520197862.

It can be written as a sum of positive squares in 3 ways, for example, as 2187441 + 266603584 = 1479^2 + 16328^2 .

It is not a de Polignac number, because 268791025 - 2⁵ = 268790993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5375796 + ... + 5375845.

Almost surely, 2^268791025 is an apocalyptic number.

268791025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268791025 is a deficient number, since it is larger than the sum of its proper divisors (64509877).

268791025 is a wasteful number, since it uses less digits than its factorization.

268791025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751651 (or 10751646 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 268791025 is about 16394.8475137770. The cubic root of 268791025 is about 645.3642755312.

The spelling of 268791025 in words is "two hundred sixty-eight million, seven hundred ninety-one thousand, twenty-five".