505641716 has 6 divisors (see below), whose sum is σ = 884873010. Its totient is φ = 252820856.

The previous prime is 505641701. The next prime is 505641739. The reversal of 505641716 is 617146505.

It can be written as a sum of positive squares in only one way, i.e., 487968100 + 17673616 = 22090^2 + 4204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63205211 + ... + 63205218.

It is an arithmetic number, because the mean of its divisors is an integer number (147478835).

Almost surely, 2^505641716 is an apocalyptic number.

It is an amenable number.

505641716 is a deficient number, since it is larger than the sum of its proper divisors (379231294).

505641716 is a wasteful number, since it uses less digits than its factorization.

505641716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126410433 (or 126410431 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 505641716 is about 22486.4785148764. The cubic root of 505641716 is about 796.6745899630.

The spelling of 505641716 in words is "five hundred five million, six hundred forty-one thousand, seven hundred sixteen".