505780804 has 24 divisors (see below), whose sum is σ = 953074080. Its totient is φ = 233978496.

The previous prime is 505780777. The next prime is 505780811. The reversal of 505780804 is 408087505.

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 7 ways as a sum of consecutive naturals, for example, 59022 + ... + 67045.

It is an arithmetic number, because the mean of its divisors is an integer number (39711420).

Almost surely, 2^505780804 is an apocalyptic number.

It is an amenable number.

505780804 is a deficient number, since it is larger than the sum of its proper divisors (447293276).

505780804 is a wasteful number, since it uses less digits than its factorization.

505780804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126147 (or 126145 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 505780804 is about 22489.5710052460. The cubic root of 505780804 is about 796.7476309545.

The spelling of 505780804 in words is "five hundred five million, seven hundred eighty thousand, eight hundred four".