516012220 has 48 divisors (see below), whose sum is σ = 1151720640. Its totient is φ = 193526784.

The previous prime is 516012191. The next prime is 516012227. The reversal of 516012220 is 22210615.

It is a super-2 number, since 2×516012220² = 532537222378656800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516012227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91441 + ... + 96919.

It is an arithmetic number, because the mean of its divisors is an integer number (23994180).

Almost surely, 2^516012220 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 516012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575860320).

516012220 is an abundant number, since it is smaller than the sum of its proper divisors (635708420).

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

516012220 is a wasteful number, since it uses less digits than its factorization.

516012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5780 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 516012220 is about 22715.9023593605. The cubic root of 516012220 is about 802.0842630105.

Adding to 516012220 its reverse (22210615), we get a palindrome (538222835).

The spelling of 516012220 in words is "five hundred sixteen million, twelve thousand, two hundred twenty".