11564536 has 8 divisors (see below), whose sum is σ = 21683520. Its totient is φ = 5782264.

The previous prime is 11564513. The next prime is 11564543. The reversal of 11564536 is 63546511.

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

It is a junction number, because it is equal to n+sod(n) for n = 11564498 and 11564507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722776 + ... + 722791.

It is an arithmetic number, because the mean of its divisors is an integer number (2710440).

Almost surely, 2^11564536 is an apocalyptic number.

It is an amenable number.

11564536 is a deficient number, since it is larger than the sum of its proper divisors (10118984).

11564536 is a wasteful number, since it uses less digits than its factorization.

11564536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445573 (or 1445569 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 11564536 is about 3400.6669934000. Note that the first 3 decimals coincide. The cubic root of 11564536 is about 226.1393142139.

It can be divided in two parts, 11564 and 536, that added together give a square (12100 = 110²).

The spelling of 11564536 in words is "eleven million, five hundred sixty-four thousand, five hundred thirty-six".