505887872 has 32 divisors (see below), whose sum is σ = 1151800320. Its totient is φ = 216808704.

The previous prime is 505887871. The next prime is 505887911. The reversal of 505887872 is 278788505.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 505887872.

It is not an unprimeable number, because it can be changed into a prime (505887871) by changing a digit.

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, 281408 + ... + 283199.

It is an arithmetic number, because the mean of its divisors is an integer number (35993760).

Almost surely, 2^505887872 is an apocalyptic number.

It is an amenable number.

505887872 is an abundant number, since it is smaller than the sum of its proper divisors (645912448).

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

505887872 is an equidigital number, since it uses as much as digits as its factorization.

505887872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564628 (or 564616 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 50.

The square root of 505887872 is about 22491.9512715104. The cubic root of 505887872 is about 796.8038477688.

The spelling of 505887872 in words is "five hundred five million, eight hundred eighty-seven thousand, eight hundred seventy-two".