2543532239 has 2 divisors, whose sum is σ = 2543532240. Its totient is φ = 2543532238.

The previous prime is 2543532221. The next prime is 2543532247. The reversal of 2543532239 is 9322353452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543532239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543232239) 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, 1271766119 + 1271766120.

It is an arithmetic number, because the mean of its divisors is an integer number (1271766120).

Almost surely, 2^2543532239 is an apocalyptic number.

2543532239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543532239 is an equidigital number, since it uses as much as digits as its factorization.

2543532239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 38.

The square root of 2543532239 is about 50433.4436559710. The cubic root of 2543532239 is about 1365.0411664471.

The spelling of 2543532239 in words is "two billion, five hundred forty-three million, five hundred thirty-two thousand, two hundred thirty-nine".