505543512 has 16 divisors (see below), whose sum is σ = 1263858840. Its totient is φ = 168514496.

The previous prime is 505543483. The next prime is 505543513. The reversal of 505543512 is 215345505.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 505543512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505543513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10532133 + ... + 10532180.

Almost surely, 2^505543512 is an apocalyptic number.

It is an amenable number.

505543512 is an abundant number, since it is smaller than the sum of its proper divisors (758315328).

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

505543512 is a wasteful number, since it uses less digits than its factorization.

505543512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21064322 (or 21064318 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 505543512 is about 22484.2947854719. The cubic root of 505543512 is about 796.6230108215.

The spelling of 505543512 in words is "five hundred five million, five hundred forty-three thousand, five hundred twelve".