2543324557 has 2 divisors, whose sum is σ = 2543324558. Its totient is φ = 2543324556.

The previous prime is 2543324549. The next prime is 2543324617. The reversal of 2543324557 is 7554233452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2034100201 + 509224356 = 45101^2 + 22566^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543324557 - 2³ = 2543324549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543324527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271662278 + 1271662279.

It is an arithmetic number, because the mean of its divisors is an integer number (1271662279).

Almost surely, 2^2543324557 is an apocalyptic number.

It is an amenable number.

2543324557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543324557 is an equidigital number, since it uses as much as digits as its factorization.

2543324557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 40.

The square root of 2543324557 is about 50431.3846428987. The cubic root of 2543324557 is about 1365.0040131017.

The spelling of 2543324557 in words is "two billion, five hundred forty-three million, three hundred twenty-four thousand, five hundred fifty-seven".