260608561 has 12 divisors (see below), whose sum is σ = 278292096. Its totient is φ = 243477080.

The previous prime is 260608519. The next prime is 260608571. The reversal of 260608561 is 165806062.

It is not a de Polignac number, because 260608561 - 2⁷ = 260608433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260608571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530526 + ... + 531016.

It is an arithmetic number, because the mean of its divisors is an integer number (23191008).

Almost surely, 2^260608561 is an apocalyptic number.

It is an amenable number.

260608561 is a deficient number, since it is larger than the sum of its proper divisors (17683535).

260608561 is an frugal number, since it uses more digits than its factorization.

260608561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 260608561 is about 16143.3751427637. The cubic root of 260608561 is about 638.7480089501.

The spelling of 260608561 in words is "two hundred sixty million, six hundred eight thousand, five hundred sixty-one".