260686755 has 112 divisors (see below), whose sum is σ = 568499904. Its totient is φ = 111974400.

The previous prime is 260686739. The next prime is 260686759. The reversal of 260686755 is 557686062.

It is not a de Polignac number, because 260686755 - 2⁴ = 260686739 is a prime.

It is a super-3 number, since 3×260686755³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 260686755.

It is not an unprimeable number, because it can be changed into a prime (260686759) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 433455 + ... + 434055.

It is an arithmetic number, because the mean of its divisors is an integer number (5075892).

Almost surely, 2^260686755 is an apocalyptic number.

260686755 is an abundant number, since it is smaller than the sum of its proper divisors (307813149).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260686755 is an equidigital number, since it uses as much as digits as its factorization.

260686755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 633 counting only the distinct ones).

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

The square root of 260686755 is about 16145.7968214641. The cubic root of 260686755 is about 638.8118867023.

It can be divided in two parts, 26068 and 6755, that added together give a palindrome (32823).

The spelling of 260686755 in words is "two hundred sixty million, six hundred eighty-six thousand, seven hundred fifty-five".