11952565 has 8 divisors (see below), whose sum is σ = 14448600. Its totient is φ = 9491712.

The previous prime is 11952559. The next prime is 11952569. The reversal of 11952565 is 56525911.

It can be written as a sum of positive squares in 4 ways, for example, as 5202961 + 6749604 = 2281^2 + 2598^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11952565 - 2³ = 11952557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11952565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11952569) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8040 + ... + 9409.

It is an arithmetic number, because the mean of its divisors is an integer number (1806075).

Almost surely, 2^11952565 is an apocalyptic number.

It is an amenable number.

11952565 is a deficient number, since it is larger than the sum of its proper divisors (2496035).

11952565 is a wasteful number, since it uses less digits than its factorization.

11952565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591.

The product of its digits is 13500, while the sum is 34.

The square root of 11952565 is about 3457.2481831653. The cubic root of 11952565 is about 228.6407861507.

It can be divided in two parts, 11 and 952565, that added together give a square (952576 = 976²).

The spelling of 11952565 in words is "eleven million, nine hundred fifty-two thousand, five hundred sixty-five".