40009000501 has 2 divisors, whose sum is σ = 40009000502. Its totient is φ = 40009000500.

The previous prime is 40009000477. The next prime is 40009000519. The reversal of 40009000501 is 10500090004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32553541476 + 7455459025 = 180426^2 + 86345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40009000501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40009040501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20004500250 + 20004500251.

It is an arithmetic number, because the mean of its divisors is an integer number (20004500251).

Almost surely, 2^40009000501 is an apocalyptic number.

It is an amenable number.

40009000501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40009000501 is an equidigital number, since it uses as much as digits as its factorization.

40009000501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 40009000501 its reverse (10500090004), we get a palindrome (50509090505).

The spelling of 40009000501 in words is "forty billion, nine million, five hundred one", and thus it is an aban number.