5254442444561 has 2 divisors, whose sum is σ = 5254442444562. Its totient is φ = 5254442444560.

The previous prime is 5254442444507. The next prime is 5254442444623. The reversal of 5254442444561 is 1654442444525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3133763819536 + 2120678625025 = 1770244^2 + 1456255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5254442444561 is a prime.

It is not a weakly prime, because it can be changed into another prime (5254442444161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627221222280 + 2627221222281.

It is an arithmetic number, because the mean of its divisors is an integer number (2627221222281).

Almost surely, 2^{5254442444561} is an apocalyptic number.

It is an amenable number.

5254442444561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5254442444561 is an equidigital number, since it uses as much as digits as its factorization.

5254442444561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288000, while the sum is 50.

The spelling of 5254442444561 in words is "five trillion, two hundred fifty-four billion, four hundred forty-two million, four hundred forty-four thousand, five hundred sixty-one".