260864955 has 40 divisors (see below), whose sum is σ = 503605872. Its totient is φ = 128423232.

The previous prime is 260864953. The next prime is 260864971. The reversal of 260864955 is 559468062.

It is not a de Polignac number, because 260864955 - 2¹ = 260864953 is a prime.

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 260864955.

It is not an unprimeable number, because it can be changed into a prime (260864951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19509 + ... + 30038.

Almost surely, 2^260864955 is an apocalyptic number.

260864955 is a deficient number, since it is larger than the sum of its proper divisors (242740917).

260864955 is a wasteful number, since it uses less digits than its factorization.

260864955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49577 (or 49568 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 260864955 is about 16151.3143428020. The cubic root of 260864955 is about 638.9574130184.

The spelling of 260864955 in words is "two hundred sixty million, eight hundred sixty-four thousand, nine hundred fifty-five".