41020205257 has 2 divisors, whose sum is σ = 41020205258. Its totient is φ = 41020205256.

The previous prime is 41020205221. The next prime is 41020205269. The reversal of 41020205257 is 75250202014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35171626681 + 5848578576 = 187541^2 + 76476^2 .

It is a cyclic number.

It is not a de Polignac number, because 41020205257 - 2⁷ = 41020205129 is a prime.

It is not a weakly prime, because it can be changed into another prime (41020205957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20510102628 + 20510102629.

It is an arithmetic number, because the mean of its divisors is an integer number (20510102629).

Almost surely, 2^41020205257 is an apocalyptic number.

It is an amenable number.

41020205257 is a deficient number, since it is larger than the sum of its proper divisors (1).

41020205257 is an equidigital number, since it uses as much as digits as its factorization.

41020205257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The spelling of 41020205257 in words is "forty-one billion, twenty million, two hundred five thousand, two hundred fifty-seven".