2543424557 has 2 divisors, whose sum is σ = 2543424558. Its totient is φ = 2543424556.

The previous prime is 2543424547. The next prime is 2543424601. The reversal of 2543424557 is 7554243452.

2543424557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2394242761 + 149181796 = 48931^2 + 12214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543424557 - 2¹² = 2543420461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543424517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271712278 + 1271712279.

It is an arithmetic number, because the mean of its divisors is an integer number (1271712279).

Almost surely, 2^2543424557 is an apocalyptic number.

It is an amenable number.

2543424557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543424557 is an equidigital number, since it uses as much as digits as its factorization.

2543424557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 41.

The square root of 2543424557 is about 50432.3760792608. The cubic root of 2543424557 is about 1365.0219028898.

The spelling of 2543424557 in words is "two billion, five hundred forty-three million, four hundred twenty-four thousand, five hundred fifty-seven".