515883213 has 12 divisors (see below), whose sum is σ = 745777500. Its totient is φ = 343639296.

The previous prime is 515883211. The next prime is 515883217. The reversal of 515883213 is 312388515.

515883213 is a `hidden beast` number, since 51 + 588 + 3 + 21 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 153437769 + 362445444 = 12387^2 + 19038^2 .

It is not a de Polignac number, because 515883213 - 2¹ = 515883211 is a prime.

It is a super-2 number, since 2×515883213² = 532270978910406738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515883211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11706 + ... + 34187.

It is an arithmetic number, because the mean of its divisors is an integer number (62148125).

Almost surely, 2^515883213 is an apocalyptic number.

It is an amenable number.

515883213 is a deficient number, since it is larger than the sum of its proper divisors (229894287).

515883213 is a wasteful number, since it uses less digits than its factorization.

515883213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47148 (or 47145 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 515883213 is about 22713.0626072311. The cubic root of 515883213 is about 802.0174150401.

The spelling of 515883213 in words is "five hundred fifteen million, eight hundred eighty-three thousand, two hundred thirteen".