504434005511549 has 2 divisors, whose sum is σ = 504434005511550. Its totient is φ = 504434005511548.

The previous prime is 504434005511539. The next prime is 504434005511573. The reversal of 504434005511549 is 945115500434405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355021642312324 + 149412363199225 = 18842018^2 + 12223435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504434005511549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 504434005511497 and 504434005511506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504434005511539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252217002755774 + 252217002755775.

It is an arithmetic number, because the mean of its divisors is an integer number (252217002755775).

Almost surely, 2^{504434005511549} is an apocalyptic number.

It is an amenable number.

504434005511549 is a deficient number, since it is larger than the sum of its proper divisors (1).

504434005511549 is an equidigital number, since it uses as much as digits as its factorization.

504434005511549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 504434005511549 in words is "five hundred four trillion, four hundred thirty-four billion, five million, five hundred eleven thousand, five hundred forty-nine".