505644512 has 24 divisors (see below), whose sum is σ = 1038771216. Its totient is φ = 241829632.

The previous prime is 505644499. The next prime is 505644521. The reversal of 505644512 is 215446505.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342773 + ... + 344244.

It is an arithmetic number, because the mean of its divisors is an integer number (43282134).

Almost surely, 2^505644512 is an apocalyptic number.

It is an amenable number.

505644512 is an abundant number, since it is smaller than the sum of its proper divisors (533126704).

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

505644512 is a wasteful number, since it uses less digits than its factorization.

505644512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687050 (or 687042 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 505644512 is about 22486.5406854856. The cubic root of 505644512 is about 796.6760583928.

The spelling of 505644512 in words is "five hundred five million, six hundred forty-four thousand, five hundred twelve".