505855005 has 16 divisors (see below), whose sum is σ = 822637824. Its totient is φ = 265366080.

The previous prime is 505855003. The next prime is 505855027. The reversal of 505855005 is 500558505.

It is not a de Polignac number, because 505855005 - 2¹ = 505855003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505855003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275509 + ... + 277338.

It is an arithmetic number, because the mean of its divisors is an integer number (51414864).

Almost surely, 2^505855005 is an apocalyptic number.

It is an amenable number.

505855005 is a deficient number, since it is larger than the sum of its proper divisors (316782819).

505855005 is a wasteful number, since it uses less digits than its factorization.

505855005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552916.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 505855005 is about 22491.2206204999. The cubic root of 505855005 is about 796.7865915607.

The spelling of 505855005 in words is "five hundred five million, eight hundred fifty-five thousand, five".