512715385 has 16 divisors (see below), whose sum is σ = 757241856. Its totient is φ = 324531648.

The previous prime is 512715367. The next prime is 512715397. The reversal of 512715385 is 583517215.

It is a happy number.

It is not a de Polignac number, because 512715385 - 2¹¹ = 512713337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562969 + ... + 563878.

It is an arithmetic number, because the mean of its divisors is an integer number (47327616).

Almost surely, 2^512715385 is an apocalyptic number.

It is an amenable number.

512715385 is a deficient number, since it is larger than the sum of its proper divisors (244526471).

512715385 is a wasteful number, since it uses less digits than its factorization.

512715385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126872.

The product of its digits is 42000, while the sum is 37.

The square root of 512715385 is about 22643.2194044928. The cubic root of 512715385 is about 800.3724229537.

The spelling of 512715385 in words is "five hundred twelve million, seven hundred fifteen thousand, three hundred eighty-five".