515323252 has 12 divisors (see below), whose sum is σ = 905246496. Its totient is φ = 256681400.

The previous prime is 515323247. The next prime is 515323271. The reversal of 515323252 is 252323515.

It is a self number, because there is not a number n which added to its sum of digits gives 515323252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243874 + ... + 245977.

It is an arithmetic number, because the mean of its divisors is an integer number (75437208).

Almost surely, 2^515323252 is an apocalyptic number.

It is an amenable number.

515323252 is a deficient number, since it is larger than the sum of its proper divisors (389923244).

515323252 is a wasteful number, since it uses less digits than its factorization.

515323252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490118 (or 490116 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 515323252 is about 22700.7324110919. The cubic root of 515323252 is about 801.7271290150.

Adding to 515323252 its reverse (252323515), we get a palindrome (767646767).

The spelling of 515323252 in words is "five hundred fifteen million, three hundred twenty-three thousand, two hundred fifty-two".