2543522477 has 2 divisors, whose sum is σ = 2543522478. Its totient is φ = 2543522476.

The previous prime is 2543522437. The next prime is 2543522557. The reversal of 2543522477 is 7742253452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1667007241 + 876515236 = 40829^2 + 29606^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543522477 - 2¹⁶ = 2543456941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543522437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271761238 + 1271761239.

It is an arithmetic number, because the mean of its divisors is an integer number (1271761239).

Almost surely, 2^2543522477 is an apocalyptic number.

It is an amenable number.

2543522477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543522477 is an equidigital number, since it uses as much as digits as its factorization.

2543522477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 41.

The square root of 2543522477 is about 50433.3468748605. The cubic root of 2543522477 is about 1365.0394201159.

The spelling of 2543522477 in words is "two billion, five hundred forty-three million, five hundred twenty-two thousand, four hundred seventy-seven".