503216053521 has 32 divisors (see below), whose sum is σ = 702296179200. Its totient is φ = 320170245120.

The previous prime is 503216053453. The next prime is 503216053537. The reversal of 503216053521 is 125350612305.

It is a happy number.

It is not a de Polignac number, because 503216053521 - 2⁹ = 503216053009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503216053121) 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 31 ways as a sum of consecutive naturals, for example, 12055675 + ... + 12097343.

It is an arithmetic number, because the mean of its divisors is an integer number (21946755600).

Almost surely, 2^503216053521 is an apocalyptic number.

It is an amenable number.

503216053521 is a deficient number, since it is larger than the sum of its proper divisors (199080125679).

503216053521 is a wasteful number, since it uses less digits than its factorization.

503216053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43849.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 503216053521 its reverse (125350612305), we get a palindrome (628566665826).

The spelling of 503216053521 in words is "five hundred three billion, two hundred sixteen million, fifty-three thousand, five hundred twenty-one".