505622663 has 16 divisors (see below), whose sum is σ = 635550720. Its totient is φ = 391538016.

The previous prime is 505622603. The next prime is 505622671. The reversal of 505622663 is 366226505.

It is a cyclic number.

It is not a de Polignac number, because 505622663 - 2⁶ = 505622599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505622603) by changing a digit.

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, 54833 + ... + 63386.

It is an arithmetic number, because the mean of its divisors is an integer number (39721920).

Almost surely, 2^505622663 is an apocalyptic number.

505622663 is a deficient number, since it is larger than the sum of its proper divisors (129928057).

505622663 is a wasteful number, since it uses less digits than its factorization.

505622663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118286.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 505622663 is about 22486.0548562882. The cubic root of 505622663 is about 796.6645833838.

The spelling of 505622663 in words is "five hundred five million, six hundred twenty-two thousand, six hundred sixty-three".