40765523 has 2 divisors, whose sum is σ = 40765524. Its totient is φ = 40765522.

The previous prime is 40765489. The next prime is 40765537. The reversal of 40765523 is 32556704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40765523 - 2¹⁰ = 40764499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40765523.

It is not a weakly prime, because it can be changed into another prime (40765553) 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 as a sum of consecutive naturals, namely, 20382761 + 20382762.

It is an arithmetic number, because the mean of its divisors is an integer number (20382762).

Almost surely, 2^40765523 is an apocalyptic number.

40765523 is a deficient number, since it is larger than the sum of its proper divisors (1).

40765523 is an equidigital number, since it uses as much as digits as its factorization.

40765523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 40765523 is about 6384.7884068307. The cubic root of 40765523 is about 344.1631274044.

The spelling of 40765523 in words is "forty million, seven hundred sixty-five thousand, five hundred twenty-three".