11580261 has 16 divisors (see below), whose sum is σ = 19250688. Its totient is φ = 6015600.

The previous prime is 11580227. The next prime is 11580271. The reversal of 11580261 is 16208511.

11580261 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11580261 - 2⁷ = 11580133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11580271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24835 + ... + 25296.

It is an arithmetic number, because the mean of its divisors is an integer number (1203168).

Almost surely, 2^11580261 is an apocalyptic number.

11580261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11580261 is a deficient number, since it is larger than the sum of its proper divisors (7670427).

11580261 is a wasteful number, since it uses less digits than its factorization.

11580261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50152.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11580261 is about 3402.9782544119. The cubic root of 11580261 is about 226.2417662317.

Adding to 11580261 its reverse (16208511), we get a palindrome (27788772).

The spelling of 11580261 in words is "eleven million, five hundred eighty thousand, two hundred sixty-one".