260555 has 12 divisors (see below), whose sum is σ = 330816. Its totient is φ = 196800.

The previous prime is 260551. The next prime is 260569. The reversal of 260555 is 555062.

It is not a de Polignac number, because 260555 - 2² = 260551 is a prime.

It is an Ulam number.

It is a Duffinian number.

260555 is a modest number, since divided by 555 gives 260 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 260555.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 260555.

It is not an unprimeable number, because it can be changed into a prime (260551) 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 11 ways as a sum of consecutive naturals, for example, 6335 + ... + 6375.

It is an arithmetic number, because the mean of its divisors is an integer number (27568).

2²⁶⁰⁵⁵⁵ is an apocalyptic number.

260555 is a deficient number, since it is larger than the sum of its proper divisors (70261).

260555 is an equidigital number, since it uses as much as digits as its factorization.

260555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 260555 is about 510.4458835175. The cubic root of 260555 is about 63.8704246860.

The spelling of 260555 in words is "two hundred sixty thousand, five hundred fifty-five".