11563256 has 8 divisors (see below), whose sum is σ = 21681120. Its totient is φ = 5781624.

The previous prime is 11563249. The next prime is 11563261. The reversal of 11563256 is 65236511.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722696 + ... + 722711.

It is an arithmetic number, because the mean of its divisors is an integer number (2710140).

Almost surely, 2^11563256 is an apocalyptic number.

It is an amenable number.

11563256 is a deficient number, since it is larger than the sum of its proper divisors (10117864).

11563256 is a wasteful number, since it uses less digits than its factorization.

11563256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445413 (or 1445409 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 11563256 is about 3400.4787898177. The cubic root of 11563256 is about 226.1309706308.

Adding to 11563256 its reverse (65236511), we get a palindrome (76799767).

The spelling of 11563256 in words is "eleven million, five hundred sixty-three thousand, two hundred fifty-six".