260540011 has 4 divisors (see below), whose sum is σ = 275865912. Its totient is φ = 245214112.

The previous prime is 260539991. The next prime is 260540023. The reversal of 260540011 is 110045062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110045062 = 2 ⋅55022531.

It is a cyclic number.

It is not a de Polignac number, because 260540011 - 2²¹ = 258442859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260540041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7662925 + ... + 7662958.

It is an arithmetic number, because the mean of its divisors is an integer number (68966478).

Almost surely, 2^260540011 is an apocalyptic number.

260540011 is a deficient number, since it is larger than the sum of its proper divisors (15325901).

260540011 is a wasteful number, since it uses less digits than its factorization.

260540011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15325900.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 260540011 is about 16141.2518411677. The cubic root of 260540011 is about 638.6919990022.

Adding to 260540011 its reverse (110045062), we get a palindrome (370585073).

The spelling of 260540011 in words is "two hundred sixty million, five hundred forty thousand, eleven".