516920212 has 12 divisors (see below), whose sum is σ = 905183860. Its totient is φ = 258296256.

The previous prime is 516920203. The next prime is 516920231. The reversal of 516920212 is 212029615.

It can be written as a sum of positive squares in 2 ways, for example, as 290838916 + 226081296 = 17054^2 + 15036^2 .

It is a super-3 number, since 3×516920212³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 33723 + ... + 46594.

Almost surely, 2^516920212 is an apocalyptic number.

It is an amenable number.

516920212 is a deficient number, since it is larger than the sum of its proper divisors (388263648).

516920212 is a wasteful number, since it uses less digits than its factorization.

516920212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81930 (or 81928 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 516920212 is about 22735.8793979912. The cubic root of 516920212 is about 802.5544452471.

Adding to 516920212 its reverse (212029615), we get a palindrome (728949827).

The spelling of 516920212 in words is "five hundred sixteen million, nine hundred twenty thousand, two hundred twelve".