260495985 has 16 divisors (see below), whose sum is σ = 438730560. Its totient is φ = 131618880.

The previous prime is 260495959. The next prime is 260495987. The reversal of 260495985 is 589594062.

It is a de Polignac number, because none of the positive numbers 2^k-260495985 is a prime.

It is a super-3 number, since 3×260495985³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (260495987) 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, 456726 + ... + 457295.

It is an arithmetic number, because the mean of its divisors is an integer number (27420660).

Almost surely, 2^260495985 is an apocalyptic number.

It is an amenable number.

260495985 is a deficient number, since it is larger than the sum of its proper divisors (178234575).

260495985 is a wasteful number, since it uses less digits than its factorization.

260495985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914048.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 260495985 is about 16139.8880107639. Note that the first 3 decimals coincide. The cubic root of 260495985 is about 638.6560216260.

It can be divided in two parts, 2604 and 95985, that added together give a palindrome (98589).

The spelling of 260495985 in words is "two hundred sixty million, four hundred ninety-five thousand, nine hundred eighty-five".