503954663 has 16 divisors (see below), whose sum is σ = 531048960. Its totient is φ = 477573600.

The previous prime is 503954639. The next prime is 503954707. The reversal of 503954663 is 366459305.

It is a cyclic number.

It is not a de Polignac number, because 503954663 - 2⁶ = 503954599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503954663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503954603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639956 + ... + 640742.

It is an arithmetic number, because the mean of its divisors is an integer number (33190560).

Almost surely, 2^503954663 is an apocalyptic number.

503954663 is a deficient number, since it is larger than the sum of its proper divisors (27094297).

503954663 is a wasteful number, since it uses less digits than its factorization.

503954663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 503954663 is about 22448.9345626914. The cubic root of 503954663 is about 795.7875786261.

The spelling of 503954663 in words is "five hundred three million, nine hundred fifty-four thousand, six hundred sixty-three".