40552210109 has 2 divisors, whose sum is σ = 40552210110. Its totient is φ = 40552210108.

The previous prime is 40552210081. The next prime is 40552210183. The reversal of 40552210109 is 90101225504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36817166884 + 3735043225 = 191878^2 + 61115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40552210109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40552210189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276105054 + 20276105055.

It is an arithmetic number, because the mean of its divisors is an integer number (20276105055).

Almost surely, 2^40552210109 is an apocalyptic number.

It is an amenable number.

40552210109 is a deficient number, since it is larger than the sum of its proper divisors (1).

40552210109 is an equidigital number, since it uses as much as digits as its factorization.

40552210109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 40552210109 in words is "forty billion, five hundred fifty-two million, two hundred ten thousand, one hundred nine".