11932565 has 4 divisors (see below), whose sum is σ = 14319084. Its totient is φ = 9546048.

The previous prime is 11932559. The next prime is 11932567. The reversal of 11932565 is 56523911.

11932565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56523911 = 863 ⋅65497.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 4566769 = 2714^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 11932565 - 2⁸ = 11932309 is a prime.

It is a super-2 number, since 2×11932565² = 284772214958450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11932567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193252 + ... + 1193261.

It is an arithmetic number, because the mean of its divisors is an integer number (3579771).

Almost surely, 2^11932565 is an apocalyptic number.

It is an amenable number.

11932565 is a deficient number, since it is larger than the sum of its proper divisors (2386519).

11932565 is an equidigital number, since it uses as much as digits as its factorization.

11932565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386518.

The product of its digits is 8100, while the sum is 32.

The square root of 11932565 is about 3454.3544983108. The cubic root of 11932565 is about 228.5131881935.

The spelling of 11932565 in words is "eleven million, nine hundred thirty-two thousand, five hundred sixty-five".