2550449569 has 2 divisors, whose sum is σ = 2550449570. Its totient is φ = 2550449568.

The previous prime is 2550449527. The next prime is 2550449579. The reversal of 2550449569 is 9659440552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1427328400 + 1123121169 = 37780^2 + 33513^2 .

It is a cyclic number.

It is not a de Polignac number, because 2550449569 - 2¹⁷ = 2550318497 is a prime.

It is a super-2 number, since 2×2550449569² = 13009586008024571522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2550449579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275224784 + 1275224785.

It is an arithmetic number, because the mean of its divisors is an integer number (1275224785).

Almost surely, 2^2550449569 is an apocalyptic number.

It is an amenable number.

2550449569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550449569 is an equidigital number, since it uses as much as digits as its factorization.

2550449569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The square root of 2550449569 is about 50501.9758920381. The cubic root of 2550449569 is about 1366.2774908997.

The spelling of 2550449569 in words is "two billion, five hundred fifty million, four hundred forty-nine thousand, five hundred sixty-nine".