512552443240 has 32 divisors (see below), whose sum is σ = 1221080822280. Its totient is φ = 192960919552.

The previous prime is 512552443217. The next prime is 512552443303. The reversal of 512552443240 is 42344255215.

It can be written as a sum of positive squares in 4 ways, for example, as 512481310884 + 71132356 = 715878^2 + 8434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 512552443240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376876117 + ... + 376877476.

Almost surely, 2^512552443240 is an apocalyptic number.

It is an amenable number.

512552443240 is an abundant number, since it is smaller than the sum of its proper divisors (708528379040).

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

512552443240 is a wasteful number, since it uses less digits than its factorization.

512552443240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753753621 (or 753753617 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 512552443240 its reverse (42344255215), we get a palindrome (554896698455).

The spelling of 512552443240 in words is "five hundred twelve billion, five hundred fifty-two million, four hundred forty-three thousand, two hundred forty".