515071216 has 40 divisors (see below), whose sum is σ = 1098702000. Its totient is φ = 231966720.

The previous prime is 515071211. The next prime is 515071217. The reversal of 515071216 is 612170515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515071211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5760 + ... + 32608.

It is an arithmetic number, because the mean of its divisors is an integer number (27467550).

Almost surely, 2^515071216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515071216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549351000).

515071216 is an abundant number, since it is smaller than the sum of its proper divisors (583630784).

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

515071216 is a wasteful number, since it uses less digits than its factorization.

515071216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26977 (or 26971 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 515071216 is about 22695.1804575333. The cubic root of 515071216 is about 801.5964039159.

The spelling of 515071216 in words is "five hundred fifteen million, seventy-one thousand, two hundred sixteen".