11260561 has 4 divisors (see below), whose sum is σ = 12126772. Its totient is φ = 10394352.

The previous prime is 11260549. The next prime is 11260567. The reversal of 11260561 is 16506211.

11260561 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6225025 + 5035536 = 2495^2 + 2244^2 .

It is a cyclic number.

It is not a de Polignac number, because 11260561 - 2⁹ = 11260049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11260567) 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, 433086 + ... + 433111.

It is an arithmetic number, because the mean of its divisors is an integer number (3031693).

Almost surely, 2^11260561 is an apocalyptic number.

It is an amenable number.

11260561 is a deficient number, since it is larger than the sum of its proper divisors (866211).

11260561 is an equidigital number, since it uses as much as digits as its factorization.

11260561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866210.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11260561 is about 3355.6759378700. The cubic root of 11260561 is about 224.1403311255.

Adding to 11260561 its reverse (16506211), we get a palindrome (27766772).

The spelling of 11260561 in words is "eleven million, two hundred sixty thousand, five hundred sixty-one".