2533339981 has 2 divisors, whose sum is σ = 2533339982. Its totient is φ = 2533339980.

The previous prime is 2533339961. The next prime is 2533340009. The reversal of 2533339981 is 1899333352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2463533956 + 69806025 = 49634^2 + 8355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2533339981 is a prime.

It is a super-2 number, since 2×2533339981² = 12835622918666160722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2533339961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266669990 + 1266669991.

It is an arithmetic number, because the mean of its divisors is an integer number (1266669991).

Almost surely, 2^2533339981 is an apocalyptic number.

It is an amenable number.

2533339981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2533339981 is an equidigital number, since it uses as much as digits as its factorization.

2533339981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 2533339981 is about 50332.2956063003. The cubic root of 2533339981 is about 1363.2154276130.

The spelling of 2533339981 in words is "two billion, five hundred thirty-three million, three hundred thirty-nine thousand, nine hundred eighty-one".