40775563 has 2 divisors, whose sum is σ = 40775564. Its totient is φ = 40775562.

The previous prime is 40775561. The next prime is 40775593. The reversal of 40775563 is 36557704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40775563 - 2¹ = 40775561 is a prime.

Together with 40775561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40775561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20387781 + 20387782.

It is an arithmetic number, because the mean of its divisors is an integer number (20387782).

Almost surely, 2^40775563 is an apocalyptic number.

40775563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40775563 is an equidigital number, since it uses as much as digits as its factorization.

40775563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 40775563 is about 6385.5746021795. The cubic root of 40775563 is about 344.1913793349.

The spelling of 40775563 in words is "forty million, seven hundred seventy-five thousand, five hundred sixty-three".