40255070909 has 2 divisors, whose sum is σ = 40255070910. Its totient is φ = 40255070908.

The previous prime is 40255070857. The next prime is 40255070927. The reversal of 40255070909 is 90907055204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21373562809 + 18881508100 = 146197^2 + 137410^2 .

It is a cyclic number.

It is not a de Polignac number, because 40255070909 - 2²⁸ = 39986635453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40255070969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127535454 + 20127535455.

It is an arithmetic number, because the mean of its divisors is an integer number (20127535455).

Almost surely, 2^40255070909 is an apocalyptic number.

It is an amenable number.

40255070909 is a deficient number, since it is larger than the sum of its proper divisors (1).

40255070909 is an equidigital number, since it uses as much as digits as its factorization.

40255070909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 40255070909 in words is "forty billion, two hundred fifty-five million, seventy thousand, nine hundred nine".