2543355497 has 2 divisors, whose sum is σ = 2543355498. Its totient is φ = 2543355496.

The previous prime is 2543355491. The next prime is 2543355517. The reversal of 2543355497 is 7945533452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1971715216 + 571640281 = 44404^2 + 23909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543355497 - 2⁴ = 2543355481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2543355491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271677748 + 1271677749.

It is an arithmetic number, because the mean of its divisors is an integer number (1271677749).

Almost surely, 2^2543355497 is an apocalyptic number.

It is an amenable number.

2543355497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543355497 is an equidigital number, since it uses as much as digits as its factorization.

2543355497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 47.

The square root of 2543355497 is about 50431.6913953914. The cubic root of 2543355497 is about 1365.0095482522.

The spelling of 2543355497 in words is "two billion, five hundred forty-three million, three hundred fifty-five thousand, four hundred ninety-seven".