505705672 has 16 divisors (see below), whose sum is σ = 998103600. Its totient is φ = 239544720.

The previous prime is 505705667. The next prime is 505705693. The reversal of 505705672 is 276507505.

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, 1663354 + ... + 1663657.

It is an arithmetic number, because the mean of its divisors is an integer number (62381475).

Almost surely, 2^505705672 is an apocalyptic number.

It is an amenable number.

505705672 is a deficient number, since it is larger than the sum of its proper divisors (492397928).

505705672 is a wasteful number, since it uses less digits than its factorization.

505705672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327036 (or 3327032 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 505705672 is about 22487.9005689726. The cubic root of 505705672 is about 796.7081776269.

The spelling of 505705672 in words is "five hundred five million, seven hundred five thousand, six hundred seventy-two".