260775985 has 8 divisors (see below), whose sum is σ = 313240896. Its totient is φ = 208414320.

The previous prime is 260775979. The next prime is 260775989. The reversal of 260775985 is 589577062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260775985 - 2⁷ = 260775857 is a prime.

It is a super-2 number, since 2×260775985² = 136008228705440450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260775989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20139 + ... + 30448.

It is an arithmetic number, because the mean of its divisors is an integer number (39155112).

Almost surely, 2^260775985 is an apocalyptic number.

It is an amenable number.

260775985 is a deficient number, since it is larger than the sum of its proper divisors (52464911).

260775985 is a wasteful number, since it uses less digits than its factorization.

260775985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51623.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The square root of 260775985 is about 16148.5598429086. The cubic root of 260775985 is about 638.8847643114.

The spelling of 260775985 in words is "two hundred sixty million, seven hundred seventy-five thousand, nine hundred eighty-five".