512322012520 has 16 divisors (see below), whose sum is σ = 1152724528260. Its totient is φ = 204928804992.

The previous prime is 512322012451. The next prime is 512322012539. The reversal of 512322012520 is 25210223215.

It can be written as a sum of positive squares in 2 ways, for example, as 430254659844 + 82067352676 = 655938^2 + 286474^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6404025117 + ... + 6404025196.

Almost surely, 2^512322012520 is an apocalyptic number.

It is an amenable number.

512322012520 is an abundant number, since it is smaller than the sum of its proper divisors (640402515740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512322012520 is a wasteful number, since it uses less digits than its factorization.

512322012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808050324 (or 12808050320 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 512322012520 its reverse (25210223215), we get a palindrome (537532235735).

The spelling of 512322012520 in words is "five hundred twelve billion, three hundred twenty-two million, twelve thousand, five hundred twenty".