505874856 has 16 divisors (see below), whose sum is σ = 1264687200. Its totient is φ = 168624944.

The previous prime is 505874807. The next prime is 505874911. The reversal of 505874856 is 658478505.

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, 10539036 + ... + 10539083.

It is an arithmetic number, because the mean of its divisors is an integer number (79042950).

Almost surely, 2^505874856 is an apocalyptic number.

It is an amenable number.

505874856 is an abundant number, since it is smaller than the sum of its proper divisors (758812344).

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

505874856 is a wasteful number, since it uses less digits than its factorization.

505874856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078128 (or 21078124 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 48.

The square root of 505874856 is about 22491.6619216989. The cubic root of 505874856 is about 796.7970140491.

The spelling of 505874856 in words is "five hundred five million, eight hundred seventy-four thousand, eight hundred fifty-six".