512223900 has 36 divisors (see below), whose sum is σ = 1482035352. Its totient is φ = 136592960.

The previous prime is 512223871. The next prime is 512223917. The reversal of 512223900 is 9322215.

It is a congruent number.

It is an unprimeable number.

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, 853407 + ... + 854006.

Almost surely, 2^512223900 is an apocalyptic number.

512223900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

512223900 is an abundant number, since it is smaller than the sum of its proper divisors (969811452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512223900 is a wasteful number, since it uses less digits than its factorization.

512223900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707430 (or 1707423 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 512223900 is about 22632.3639949520. The cubic root of 512223900 is about 800.1165975888.

The spelling of 512223900 in words is "five hundred twelve million, two hundred twenty-three thousand, nine hundred".