505596500 has 48 divisors (see below), whose sum is σ = 1114473360. Its totient is φ = 200361600.

The previous prime is 505596499. The next prime is 505596563. The reversal of 505596500 is 5695505.

It can be written as a sum of positive squares in 8 ways, for example, as 53523856 + 452072644 = 7316^2 + 21262^2 .

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 49862 + ... + 59138.

It is an arithmetic number, because the mean of its divisors is an integer number (23218195).

Almost surely, 2^505596500 is an apocalyptic number.

505596500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505596500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557236680).

505596500 is an abundant number, since it is smaller than the sum of its proper divisors (608876860).

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

505596500 is a wasteful number, since it uses less digits than its factorization.

505596500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405 (or 9393 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 35.

The square root of 505596500 is about 22485.4730881963. The cubic root of 505596500 is about 796.6508422441.

The spelling of 505596500 in words is "five hundred five million, five hundred ninety-six thousand, five hundred".