515042895 has 16 divisors (see below), whose sum is σ = 831772800. Its totient is φ = 272121504.

The previous prime is 515042893. The next prime is 515042903. The reversal of 515042895 is 598240515.

It is not a de Polignac number, because 515042895 - 2¹ = 515042893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515042893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158845 + ... + 162054.

It is an arithmetic number, because the mean of its divisors is an integer number (51985800).

Almost surely, 2^515042895 is an apocalyptic number.

515042895 is a deficient number, since it is larger than the sum of its proper divisors (316729905).

515042895 is a wasteful number, since it uses less digits than its factorization.

515042895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321014.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 515042895 is about 22694.5565059113. The cubic root of 515042895 is about 801.5817118195.

The spelling of 515042895 in words is "five hundred fifteen million, forty-two thousand, eight hundred ninety-five".