11552566 has 8 divisors (see below), whose sum is σ = 17445600. Its totient is φ = 5737368.

The previous prime is 11552561. The next prime is 11552581. The reversal of 11552566 is 66525511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552561) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 19086 + ... + 19681.

It is an arithmetic number, because the mean of its divisors is an integer number (2180700).

Almost surely, 2^11552566 is an apocalyptic number.

11552566 is a deficient number, since it is larger than the sum of its proper divisors (5893034).

11552566 is a wasteful number, since it uses less digits than its factorization.

11552566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38918.

The product of its digits is 9000, while the sum is 31.

The square root of 11552566 is about 3398.9065888900. The cubic root of 11552566 is about 226.0612646187.

It can be divided in two parts, 1155 and 2566, that added together give a square (3721 = 61²).

The spelling of 11552566 in words is "eleven million, five hundred fifty-two thousand, five hundred sixty-six".