544796509 has 2 divisors, whose sum is σ = 544796510. Its totient is φ = 544796508.

The previous prime is 544796503. The next prime is 544796513. The reversal of 544796509 is 905697445.

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., 530012484 + 14784025 = 23022^2 + 3845^2 .

It is a cyclic number.

It is not a de Polignac number, because 544796509 - 2⁵ = 544796477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544796503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272398254 + 272398255.

It is an arithmetic number, because the mean of its divisors is an integer number (272398255).

Almost surely, 2^544796509 is an apocalyptic number.

It is an amenable number.

544796509 is a deficient number, since it is larger than the sum of its proper divisors (1).

544796509 is an equidigital number, since it uses as much as digits as its factorization.

544796509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 544796509 is about 23340.8763545845. The cubic root of 544796509 is about 816.7292421486.

The spelling of 544796509 in words is "five hundred forty-four million, seven hundred ninety-six thousand, five hundred nine".