511304255489 has 2 divisors, whose sum is σ = 511304255490. Its totient is φ = 511304255488.

The previous prime is 511304255479. The next prime is 511304255503. The reversal of 511304255489 is 984552403115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507513760000 + 3790495489 = 712400^2 + 61567^2 .

It is a cyclic number.

It is not a de Polignac number, because 511304255489 - 2¹⁶ = 511304189953 is a prime.

It is a super-2 number, since 2×511304255489² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511304255479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255652127744 + 255652127745.

It is an arithmetic number, because the mean of its divisors is an integer number (255652127745).

Almost surely, 2^511304255489 is an apocalyptic number.

It is an amenable number.

511304255489 is a deficient number, since it is larger than the sum of its proper divisors (1).

511304255489 is an equidigital number, since it uses as much as digits as its factorization.

511304255489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 511304255489 in words is "five hundred eleven billion, three hundred four million, two hundred fifty-five thousand, four hundred eighty-nine".