515213352 has 128 divisors (see below), whose sum is σ = 1467840000. Its totient is φ = 167401728.

The previous prime is 515213327. The next prime is 515213353. The reversal of 515213352 is 253312515.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (515213353) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1859838 + ... + 1860114.

It is an arithmetic number, because the mean of its divisors is an integer number (11467500).

Almost surely, 2^515213352 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 515213352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733920000).

515213352 is an abundant number, since it is smaller than the sum of its proper divisors (952626648).

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

515213352 is a wasteful number, since it uses less digits than its factorization.

515213352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 515213352 is about 22698.3116552752. The cubic root of 515213352 is about 801.6701317320.

Adding to 515213352 its reverse (253312515), we get a palindrome (768525867).

The spelling of 515213352 in words is "five hundred fifteen million, two hundred thirteen thousand, three hundred fifty-two".