515213052 has 36 divisors (see below), whose sum is σ = 1232248248. Its totient is φ = 167542400.

The previous prime is 515213051. The next prime is 515213071. The reversal of 515213052 is 250312515.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515213051) 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, 7402 + ... + 32942.

It is an arithmetic number, because the mean of its divisors is an integer number (34229118).

Almost surely, 2^515213052 is an apocalyptic number.

It is an amenable number.

515213052 is an abundant number, since it is smaller than the sum of its proper divisors (717035196).

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

515213052 is a wasteful number, since it uses less digits than its factorization.

515213052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25630 (or 25587 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 515213052 is about 22698.3050468532. The cubic root of 515213052 is about 801.6699761323.

Adding to 515213052 its reverse (250312515), we get a palindrome (765525567).

The spelling of 515213052 in words is "five hundred fifteen million, two hundred thirteen thousand, fifty-two".