505000550 has 12 divisors (see below), whose sum is σ = 939301116. Its totient is φ = 202000200.

The previous prime is 505000549. The next prime is 505000583. The reversal of 505000550 is 55000505.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5049956 + ... + 5050055.

It is an arithmetic number, because the mean of its divisors is an integer number (78275093).

Almost surely, 2^505000550 is an apocalyptic number.

505000550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505000550 is a deficient number, since it is larger than the sum of its proper divisors (434300566).

505000550 is a wasteful number, since it uses less digits than its factorization.

505000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100023 (or 10100018 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 505000550 is about 22472.2172915803. The cubic root of 505000550 is about 796.3377132782.

The spelling of 505000550 in words is "five hundred five million, five hundred fifty", and thus it is an aban number.