512805315 has 32 divisors (see below), whose sum is σ = 915906816. Its totient is φ = 242847360.

The previous prime is 512805313. The next prime is 512805329. The reversal of 512805315 is 513508215.

It is not a de Polignac number, because 512805315 - 2¹ = 512805313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512805313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29044 + ... + 43233.

It is an arithmetic number, because the mean of its divisors is an integer number (28622088).

Almost surely, 2^512805315 is an apocalyptic number.

512805315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

512805315 is a deficient number, since it is larger than the sum of its proper divisors (403101501).

512805315 is a wasteful number, since it uses less digits than its factorization.

512805315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72339.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 512805315 is about 22645.2051216146. The cubic root of 512805315 is about 800.4192151808.

The spelling of 512805315 in words is "five hundred twelve million, eight hundred five thousand, three hundred fifteen".