515513052 has 24 divisors (see below), whose sum is σ = 1336515600. Its totient is φ = 171837648.

The previous prime is 515513051. The next prime is 515513057. The reversal of 515513052 is 250315515.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515513051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386527 + ... + 2386742.

It is an arithmetic number, because the mean of its divisors is an integer number (55688150).

Almost surely, 2^515513052 is an apocalyptic number.

It is an amenable number.

515513052 is an abundant number, since it is smaller than the sum of its proper divisors (821002548).

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

515513052 is a wasteful number, since it uses less digits than its factorization.

515513052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773282 (or 4773274 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 515513052 is about 22704.9125080895. The cubic root of 515513052 is about 801.8255456435.

Adding to 515513052 its reverse (250315515), we get a palindrome (765828567).

The spelling of 515513052 in words is "five hundred fifteen million, five hundred thirteen thousand, fifty-two".