505086668 has 24 divisors (see below), whose sum is σ = 892390800. Its totient is φ = 250126848.

The previous prime is 505086653. The next prime is 505086679. The reversal of 505086668 is 866680505.

It is a super-2 number, since 2×505086668² = 510225084382684448, which contains 22 as substring.

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, 338468 + ... + 339956.

It is an arithmetic number, because the mean of its divisors is an integer number (37182950).

Almost surely, 2^505086668 is an apocalyptic number.

It is an amenable number.

505086668 is a deficient number, since it is larger than the sum of its proper divisors (387304132).

505086668 is a wasteful number, since it uses less digits than its factorization.

505086668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 505086668 is about 22474.1333092068. The cubic root of 505086668 is about 796.3829773301.

The spelling of 505086668 in words is "five hundred five million, eighty-six thousand, six hundred sixty-eight".