2533330081 has 2 divisors, whose sum is σ = 2533330082. Its totient is φ = 2533330080.

The previous prime is 2533330069. The next prime is 2533330091. The reversal of 2533330081 is 1800333352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1878789025 + 654541056 = 43345^2 + 25584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2533330081 - 2¹¹ = 2533328033 is a prime.

It is a super-2 number, since 2×2533330081² = 12835522598598933122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2533330091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266665040 + 1266665041.

It is an arithmetic number, because the mean of its divisors is an integer number (1266665041).

Almost surely, 2^2533330081 is an apocalyptic number.

It is an amenable number.

2533330081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2533330081 is an equidigital number, since it uses as much as digits as its factorization.

2533330081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2533330081 is about 50332.1972598058. The cubic root of 2533330081 is about 1363.2136518479.

The spelling of 2533330081 in words is "two billion, five hundred thirty-three million, three hundred thirty thousand, eighty-one".