512621012 has 6 divisors (see below), whose sum is σ = 897086778. Its totient is φ = 256310504.

The previous prime is 512620993. The next prime is 512621047. The reversal of 512621012 is 210126215.

It can be written as a sum of positive squares in only one way, i.e., 506880196 + 5740816 = 22514^2 + 2396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64077623 + ... + 64077630.

It is an arithmetic number, because the mean of its divisors is an integer number (149514463).

Almost surely, 2^512621012 is an apocalyptic number.

It is an amenable number.

512621012 is a deficient number, since it is larger than the sum of its proper divisors (384465766).

512621012 is a wasteful number, since it uses less digits than its factorization.

512621012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128155257 (or 128155255 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 512621012 is about 22641.1353955582. The cubic root of 512621012 is about 800.3233130682.

Adding to 512621012 its reverse (210126215), we get a palindrome (722747227).

The spelling of 512621012 in words is "five hundred twelve million, six hundred twenty-one thousand, twelve".