512222313 has 8 divisors (see below), whose sum is σ = 687948768. Its totient is φ = 338988704.

The previous prime is 512222281. The next prime is 512222317. The reversal of 512222313 is 313222215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 512222313 - 2⁵ = 512222281 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 512222313.

It is not an unprimeable number, because it can be changed into a prime (512222317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622731 + ... + 623552.

It is an arithmetic number, because the mean of its divisors is an integer number (85993596).

Almost surely, 2^512222313 is an apocalyptic number.

It is an amenable number.

512222313 is a deficient number, since it is larger than the sum of its proper divisors (175726455).

512222313 is a wasteful number, since it uses less digits than its factorization.

512222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246423.

The product of its digits is 720, while the sum is 21.

The square root of 512222313 is about 22632.3289345131. The cubic root of 512222313 is about 800.1157712663.

Adding to 512222313 its reverse (313222215), we get a palindrome (825444528).

It can be divided in two parts, 51222 and 2313, that added together give a palindrome (53535).

The spelling of 512222313 in words is "five hundred twelve million, two hundred twenty-two thousand, three hundred thirteen".