2808740533 has 2 divisors, whose sum is σ = 2808740534. Its totient is φ = 2808740532.

The previous prime is 2808740513. The next prime is 2808740549. The reversal of 2808740533 is 3350478082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2741779044 + 66961489 = 52362^2 + 8183^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808740533 - 2⁹ = 2808740021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2808740503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404370266 + 1404370267.

It is an arithmetic number, because the mean of its divisors is an integer number (1404370267).

Almost surely, 2^2808740533 is an apocalyptic number.

It is an amenable number.

2808740533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808740533 is an equidigital number, since it uses as much as digits as its factorization.

2808740533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2808740533 is about 52997.5521415848. The cubic root of 2808740533 is about 1410.9248217410.

The spelling of 2808740533 in words is "two billion, eight hundred eight million, seven hundred forty thousand, five hundred thirty-three".