3565204081 has 2 divisors, whose sum is σ = 3565204082. Its totient is φ = 3565204080.

The previous prime is 3565204063. The next prime is 3565204087. The reversal of 3565204081 is 1804025653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2813347681 + 751856400 = 53041^2 + 27420^2 .

It is a cyclic number.

It is not a de Polignac number, because 3565204081 - 2⁷ = 3565203953 is a prime.

It is a super-2 number, since 2×3565204081² = 25421360278358109122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3565204087) 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, 1782602040 + 1782602041.

It is an arithmetic number, because the mean of its divisors is an integer number (1782602041).

Almost surely, 2^3565204081 is an apocalyptic number.

It is an amenable number.

3565204081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3565204081 is an equidigital number, since it uses as much as digits as its factorization.

3565204081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 3565204081 is about 59709.3299325993. The cubic root of 3565204081 is about 1527.6650103578.

The spelling of 3565204081 in words is "three billion, five hundred sixty-five million, two hundred four thousand, eighty-one".