260563 has 4 divisors (see below), whose sum is σ = 264520. Its totient is φ = 256608.

The previous prime is 260551. The next prime is 260569. The reversal of 260563 is 365062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260563 - 2¹⁷ = 129491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260569) 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 3 ways as a sum of consecutive naturals, for example, 1878 + ... + 2011.

It is an arithmetic number, because the mean of its divisors is an integer number (66130).

2²⁶⁰⁵⁶³ is an apocalyptic number.

260563 is a deficient number, since it is larger than the sum of its proper divisors (3957).

260563 is an equidigital number, since it uses as much as digits as its factorization.

260563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 260563 is about 510.4537197435. The cubic root of 260563 is about 63.8710783652.

The spelling of 260563 in words is "two hundred sixty thousand, five hundred sixty-three".