515248168 has 16 divisors (see below), whose sum is σ = 970312500. Its totient is φ = 256498176.

The previous prime is 515248163. The next prime is 515248177. The reversal of 515248168 is 861842515.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 514291684 + 956484 = 22678^2 + 978^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 515248168.

It is not an unprimeable number, because it can be changed into a prime (515248163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138793 + ... + 142456.

Almost surely, 2^515248168 is an apocalyptic number.

It is an amenable number.

515248168 is a deficient number, since it is larger than the sum of its proper divisors (455064332).

515248168 is a wasteful number, since it uses less digits than its factorization.

515248168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281484 (or 281480 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 515248168 is about 22699.0785716073. The cubic root of 515248168 is about 801.6881891824.

The spelling of 515248168 in words is "five hundred fifteen million, two hundred forty-eight thousand, one hundred sixty-eight".