268752505 has 16 divisors (see below), whose sum is σ = 376099200. Its totient is φ = 184286256.

The previous prime is 268752503. The next prime is 268752521. The reversal of 268752505 is 505257862.

It is not a de Polignac number, because 268752505 - 2¹ = 268752503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268752503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76639 + ... + 80068.

It is an arithmetic number, because the mean of its divisors is an integer number (23506200).

Almost surely, 2^268752505 is an apocalyptic number.

It is an amenable number.

268752505 is a deficient number, since it is larger than the sum of its proper divisors (107346695).

268752505 is an equidigital number, since it uses as much as digits as its factorization.

268752505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156733 (or 156719 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 268752505 is about 16393.6727123607. The cubic root of 268752505 is about 645.3334453606. Note that the first 3 decimals are identical.

The spelling of 268752505 in words is "two hundred sixty-eight million, seven hundred fifty-two thousand, five hundred five".