11580056 has 8 divisors (see below), whose sum is σ = 21712620. Its totient is φ = 5790024.

The previous prime is 11580053. The next prime is 11580071. The reversal of 11580056 is 65008511.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11580053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723746 + ... + 723761.

Almost surely, 2^11580056 is an apocalyptic number.

It is an amenable number.

11580056 is a deficient number, since it is larger than the sum of its proper divisors (10132564).

11580056 is a wasteful number, since it uses less digits than its factorization.

11580056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447513 (or 1447509 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 11580056 is about 3402.9481336042. The cubic root of 11580056 is about 226.2404312061.

Adding to 11580056 its reverse (65008511), we get a palindrome (76588567).

The spelling of 11580056 in words is "eleven million, five hundred eighty thousand, fifty-six".