505427663 has 16 divisors (see below), whose sum is σ = 587212416. Its totient is φ = 430809600.

The previous prime is 505427647. The next prime is 505427669. The reversal of 505427663 is 366724505.

It is not a de Polignac number, because 505427663 - 2⁴ = 505427647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505427669) 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, 9863 + ... + 33288.

It is an arithmetic number, because the mean of its divisors is an integer number (36700776).

Almost surely, 2^505427663 is an apocalyptic number.

505427663 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

505427663 is a deficient number, since it is larger than the sum of its proper divisors (81784753).

505427663 is a wasteful number, since it uses less digits than its factorization.

505427663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43234.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 505427663 is about 22481.7184174164. The cubic root of 505427663 is about 796.5621555061.

The spelling of 505427663 in words is "five hundred five million, four hundred twenty-seven thousand, six hundred sixty-three".