2548563817 has 2 divisors, whose sum is σ = 2548563818. Its totient is φ = 2548563816.

The previous prime is 2548563793. The next prime is 2548563821. The reversal of 2548563817 is 7183658452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1682968576 + 865595241 = 41024^2 + 29421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2548563817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2548563827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274281908 + 1274281909.

It is an arithmetic number, because the mean of its divisors is an integer number (1274281909).

Almost surely, 2^2548563817 is an apocalyptic number.

It is an amenable number.

2548563817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2548563817 is an equidigital number, since it uses as much as digits as its factorization.

2548563817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The square root of 2548563817 is about 50483.3023583046. The cubic root of 2548563817 is about 1365.9406750173.

The spelling of 2548563817 in words is "two billion, five hundred forty-eight million, five hundred sixty-three thousand, eight hundred seventeen".