503488365409 has 2 divisors, whose sum is σ = 503488365410. Its totient is φ = 503488365408.

The previous prime is 503488365403. The next prime is 503488365437. The reversal of 503488365409 is 904563884305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503361870400 + 126495009 = 709480^2 + 11247^2 .

It is a cyclic number.

It is not a de Polignac number, because 503488365409 - 2³¹ = 501340881761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 503488365409.

It is not a weakly prime, because it can be changed into another prime (503488365403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251744182704 + 251744182705.

It is an arithmetic number, because the mean of its divisors is an integer number (251744182705).

Almost surely, 2^503488365409 is an apocalyptic number.

It is an amenable number.

503488365409 is a deficient number, since it is larger than the sum of its proper divisors (1).

503488365409 is an equidigital number, since it uses as much as digits as its factorization.

503488365409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 503488365409 in words is "five hundred three billion, four hundred eighty-eight million, three hundred sixty-five thousand, four hundred nine".