2456217563 has 2 divisors, whose sum is σ = 2456217564. Its totient is φ = 2456217562.

The previous prime is 2456217503. The next prime is 2456217581. The reversal of 2456217563 is 3657126542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2456217563 - 2¹⁴ = 2456201179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2456217563.

It is not a weakly prime, because it can be changed into another prime (2456217503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228108781 + 1228108782.

It is an arithmetic number, because the mean of its divisors is an integer number (1228108782).

Almost surely, 2^2456217563 is an apocalyptic number.

2456217563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2456217563 is an equidigital number, since it uses as much as digits as its factorization.

2456217563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 41.

The square root of 2456217563 is about 49560.2417568760. The cubic root of 2456217563 is about 1349.2391804504.

The spelling of 2456217563 in words is "two billion, four hundred fifty-six million, two hundred seventeen thousand, five hundred sixty-three".