260657265 has 32 divisors (see below), whose sum is σ = 459499392. Its totient is φ = 125120000.

The previous prime is 260657263. The next prime is 260657279. The reversal of 260657265 is 562756062.

It is not a de Polignac number, because 260657265 - 2¹ = 260657263 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260657263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8845 + ... + 24485.

It is an arithmetic number, because the mean of its divisors is an integer number (14359356).

Almost surely, 2^260657265 is an apocalyptic number.

It is an amenable number.

260657265 is a deficient number, since it is larger than the sum of its proper divisors (198842127).

260657265 is a wasteful number, since it uses less digits than its factorization.

260657265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15761.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 260657265 is about 16144.8835548603. The cubic root of 260657265 is about 638.7877974169.

The spelling of 260657265 in words is "two hundred sixty million, six hundred fifty-seven thousand, two hundred sixty-five".