11440559 has 4 divisors (see below), whose sum is σ = 12320616. Its totient is φ = 10560504.

The previous prime is 11440553. The next prime is 11440567. The reversal of 11440559 is 95504411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95504411 = 359 ⋅266029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11440559 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 (11440553) 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, 440009 + ... + 440034.

It is an arithmetic number, because the mean of its divisors is an integer number (3080154).

Almost surely, 2^11440559 is an apocalyptic number.

11440559 is a deficient number, since it is larger than the sum of its proper divisors (880057).

11440559 is an equidigital number, since it uses as much as digits as its factorization.

11440559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880056.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 11440559 is about 3382.3895399554. The cubic root of 11440559 is about 225.3283042675.

The spelling of 11440559 in words is "eleven million, four hundred forty thousand, five hundred fifty-nine".