515995047 has 12 divisors (see below), whose sum is σ = 745523064. Its totient is φ = 343905840.

The previous prime is 515995013. The next prime is 515995049. The reversal of 515995047 is 740599515.

515995047 is a `hidden beast` number, since 5 + 1 + 599 + 50 + 4 + 7 = 666.

It is not a de Polignac number, because 515995047 - 2¹⁶ = 515929511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515994993 and 515995011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515995049) 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 11 ways as a sum of consecutive naturals, for example, 63897 + ... + 71517.

It is an arithmetic number, because the mean of its divisors is an integer number (62126922).

Almost surely, 2^515995047 is an apocalyptic number.

515995047 is a deficient number, since it is larger than the sum of its proper divisors (229528017).

515995047 is a wasteful number, since it uses less digits than its factorization.

515995047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150 (or 15147 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 515995047 is about 22715.5243611060. The cubic root of 515995047 is about 802.0753650650.

The spelling of 515995047 in words is "five hundred fifteen million, nine hundred ninety-five thousand, forty-seven".