512394955441 has 2 divisors, whose sum is σ = 512394955442. Its totient is φ = 512394955440.

The previous prime is 512394955381. The next prime is 512394955477. The reversal of 512394955441 is 144559493215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504632640625 + 7762314816 = 710375^2 + 88104^2 .

It is a cyclic number.

It is not a de Polignac number, because 512394955441 - 2²⁵ = 512361401009 is a prime.

It is a super-2 number, since 2×512394955441² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (512394956441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256197477720 + 256197477721.

It is an arithmetic number, because the mean of its divisors is an integer number (256197477721).

Almost surely, 2^512394955441 is an apocalyptic number.

It is an amenable number.

512394955441 is a deficient number, since it is larger than the sum of its proper divisors (1).

512394955441 is an equidigital number, since it uses as much as digits as its factorization.

512394955441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 52.

The spelling of 512394955441 in words is "five hundred twelve billion, three hundred ninety-four million, nine hundred fifty-five thousand, four hundred forty-one".