2543475439 has 2 divisors, whose sum is σ = 2543475440. Its totient is φ = 2543475438.

The previous prime is 2543475419. The next prime is 2543475449. The reversal of 2543475439 is 9345743452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2543475439 - 2¹³ = 2543467247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543475419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271737719 + 1271737720.

It is an arithmetic number, because the mean of its divisors is an integer number (1271737720).

Almost surely, 2^2543475439 is an apocalyptic number.

2543475439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543475439 is an equidigital number, since it uses as much as digits as its factorization.

2543475439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 46.

The square root of 2543475439 is about 50432.8805344291. The cubic root of 2543475439 is about 1365.0310053918.

The spelling of 2543475439 in words is "two billion, five hundred forty-three million, four hundred seventy-five thousand, four hundred thirty-nine".