512808505 has 16 divisors (see below), whose sum is σ = 680773248. Its totient is φ = 367696000.

The previous prime is 512808487. The next prime is 512808509. The reversal of 512808505 is 505808215.

It is a happy number.

It is not a de Polignac number, because 512808505 - 2⁷ = 512808377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512808509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61756 + ... + 69565.

It is an arithmetic number, because the mean of its divisors is an integer number (42548328).

Almost surely, 2^512808505 is an apocalyptic number.

512808505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

512808505 is a deficient number, since it is larger than the sum of its proper divisors (167964743).

512808505 is a wasteful number, since it uses less digits than its factorization.

512808505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131408.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 512808505 is about 22645.2755558417. The cubic root of 512808505 is about 800.4208748957.

The spelling of 512808505 in words is "five hundred twelve million, eight hundred eight thousand, five hundred five".