515905852 has 48 divisors (see below), whose sum is σ = 1129863168. Its totient is φ = 200243520.

The previous prime is 515905811. The next prime is 515905861. The reversal of 515905852 is 258509515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82293 + ... + 88339.

It is an arithmetic number, because the mean of its divisors is an integer number (23538816).

Almost surely, 2^515905852 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 515905852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564931584).

515905852 is an abundant number, since it is smaller than the sum of its proper divisors (613957316).

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

515905852 is a wasteful number, since it uses less digits than its factorization.

515905852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The square root of 515905852 is about 22713.5609713669. The cubic root of 515905852 is about 802.0291467694.

The spelling of 515905852 in words is "five hundred fifteen million, nine hundred five thousand, eight hundred fifty-two".