268557613825 has 12 divisors (see below), whose sum is σ = 333019092780. Its totient is φ = 214841154560.

The previous prime is 268557613757. The next prime is 268557613843. The reversal of 268557613825 is 528316755862.

It can be written as a sum of positive squares in 6 ways, for example, as 3143059969 + 265414553856 = 56063^2 + 515184^2 .

It is not a de Polignac number, because 268557613825 - 2⁷ = 268557613697 is a prime.

It is a super-3 number, since 3×268557613825³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 268557613825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315221 + ... + 1505629.

It is an arithmetic number, because the mean of its divisors is an integer number (27751591065).

Almost surely, 2^268557613825 is an apocalyptic number.

268557613825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268557613825 is a deficient number, since it is larger than the sum of its proper divisors (64461478955).

268557613825 is a wasteful number, since it uses less digits than its factorization.

268557613825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246836 (or 246831 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 58.

The spelling of 268557613825 in words is "two hundred sixty-eight billion, five hundred fifty-seven million, six hundred thirteen thousand, eight hundred twenty-five".