512561712 has 80 divisors (see below), whose sum is σ = 1429352960. Its totient is φ = 157337856.

The previous prime is 512561701. The next prime is 512561767. The reversal of 512561712 is 217165215.

It is a self number, because there is not a number n which added to its sum of digits gives 512561712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385593 + ... + 386919.

It is an arithmetic number, because the mean of its divisors is an integer number (17866912).

Almost surely, 2^512561712 is an apocalyptic number.

512561712 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512561712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714676480).

512561712 is an abundant number, since it is smaller than the sum of its proper divisors (916791248).

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

512561712 is a wasteful number, since it uses less digits than its factorization.

512561712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1964 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 512561712 is about 22639.8257943828. The cubic root of 512561712 is about 800.2924514105.

The spelling of 512561712 in words is "five hundred twelve million, five hundred sixty-one thousand, seven hundred twelve".