40565265 has 32 divisors (see below), whose sum is σ = 70242816. Its totient is φ = 19872000.

The previous prime is 40565263. The next prime is 40565269. The reversal of 40565265 is 56256504.

It is a happy number.

40565265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40565265 - 2¹ = 40565263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40565263) 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 31 ways as a sum of consecutive naturals, for example, 53640 + ... + 54390.

It is an arithmetic number, because the mean of its divisors is an integer number (2195088).

Almost surely, 2^40565265 is an apocalyptic number.

It is an amenable number.

40565265 is a deficient number, since it is larger than the sum of its proper divisors (29677551).

40565265 is a wasteful number, since it uses less digits than its factorization.

40565265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 40565265 is about 6369.0866692172. The cubic root of 40565265 is about 343.5986423457.

The spelling of 40565265 in words is "forty million, five hundred sixty-five thousand, two hundred sixty-five".