550816577 has 2 divisors, whose sum is σ = 550816578. Its totient is φ = 550816576.

The previous prime is 550816573. The next prime is 550816589. The reversal of 550816577 is 775618055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393665281 + 157151296 = 19841^2 + 12536^2 .

It is a cyclic number.

It is not a de Polignac number, because 550816577 - 2² = 550816573 is a prime.

It is not a weakly prime, because it can be changed into another prime (550816573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275408288 + 275408289.

It is an arithmetic number, because the mean of its divisors is an integer number (275408289).

Almost surely, 2^550816577 is an apocalyptic number.

It is an amenable number.

550816577 is a deficient number, since it is larger than the sum of its proper divisors (1).

550816577 is an equidigital number, since it uses as much as digits as its factorization.

550816577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294000, while the sum is 44.

The square root of 550816577 is about 23469.4818221451. The cubic root of 550816577 is about 819.7265482212.

The spelling of 550816577 in words is "five hundred fifty million, eight hundred sixteen thousand, five hundred seventy-seven".