40905503 has 2 divisors, whose sum is σ = 40905504. Its totient is φ = 40905502.

The previous prime is 40905497. The next prime is 40905511. The reversal of 40905503 is 30550904.

40905503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40905503 - 2⁶ = 40905439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40905533) 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, 20452751 + 20452752.

It is an arithmetic number, because the mean of its divisors is an integer number (20452752).

Almost surely, 2^40905503 is an apocalyptic number.

40905503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40905503 is an equidigital number, since it uses as much as digits as its factorization.

40905503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 40905503 is about 6395.7410047625. The cubic root of 40905503 is about 344.5566046538.

The spelling of 40905503 in words is "forty million, nine hundred five thousand, five hundred three".