40757569 has 2 divisors, whose sum is σ = 40757570. Its totient is φ = 40757568.

The previous prime is 40757543. The next prime is 40757573. The reversal of 40757569 is 96575704.

40757569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22439169 + 18318400 = 4737^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 40757569 - 2⁵ = 40757537 is a prime.

It is a super-2 number, since 2×40757569² = 3322358861579522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40757539) 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 as a sum of consecutive naturals, namely, 20378784 + 20378785.

It is an arithmetic number, because the mean of its divisors is an integer number (20378785).

Almost surely, 2^40757569 is an apocalyptic number.

It is an amenable number.

40757569 is a deficient number, since it is larger than the sum of its proper divisors (1).

40757569 is an equidigital number, since it uses as much as digits as its factorization.

40757569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 40757569 is about 6384.1654897097. The cubic root of 40757569 is about 344.1407420538.

The spelling of 40757569 in words is "forty million, seven hundred fifty-seven thousand, five hundred sixty-nine".