512271225313 has 4 divisors (see below), whose sum is σ = 542404826820. Its totient is φ = 482137623808.

The previous prime is 512271225299. The next prime is 512271225383. The reversal of 512271225313 is 313522172215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 429055130529 + 83216094784 = 655023^2 + 288472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512271225313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512271225383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15066800728 + ... + 15066800761.

It is an arithmetic number, because the mean of its divisors is an integer number (135601206705).

Almost surely, 2^512271225313 is an apocalyptic number.

It is an amenable number.

512271225313 is a deficient number, since it is larger than the sum of its proper divisors (30133601507).

512271225313 is a wasteful number, since it uses less digits than its factorization.

512271225313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30133601506.

The product of its digits is 25200, while the sum is 34.

Adding to 512271225313 its reverse (313522172215), we get a palindrome (825793397528).

The spelling of 512271225313 in words is "five hundred twelve billion, two hundred seventy-one million, two hundred twenty-five thousand, three hundred thirteen".