260564 has 6 divisors (see below), whose sum is σ = 455994. Its totient is φ = 130280.

The previous prime is 260551. The next prime is 260569. The reversal of 260564 is 465062.

It can be written as a sum of positive squares in only one way, i.e., 258064 + 2500 = 508^2 + 50^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260569) by changing a digit.

260564 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32567 + ... + 32574.

It is an arithmetic number, because the mean of its divisors is an integer number (75999).

2²⁶⁰⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

260564 is a deficient number, since it is larger than the sum of its proper divisors (195430).

260564 is a wasteful number, since it uses less digits than its factorization.

260564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65145 (or 65143 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 260564 is about 510.4546992633. The cubic root of 260564 is about 63.8711600742.

The spelling of 260564 in words is "two hundred sixty thousand, five hundred sixty-four".