503612216305 has 16 divisors (see below), whose sum is σ = 662398711488. Its totient is φ = 364527576000.

The previous prime is 503612216287. The next prime is 503612216309.

503612216305 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 503612216305 - 2⁵ = 503612216273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503612216309) 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, 21686466 + ... + 21709675.

It is an arithmetic number, because the mean of its divisors is an integer number (41399919468).

Almost surely, 2^503612216305 is an apocalyptic number.

503612216305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503612216305 is a deficient number, since it is larger than the sum of its proper divisors (158786495183).

503612216305 is a wasteful number, since it uses less digits than its factorization.

503612216305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43396368.

The product of its (nonzero) digits is 32400, while the sum is 34.

It can be divided in two parts, 503612 and 216305, that added together give a palindrome (719917).

The spelling of 503612216305 in words is "five hundred three billion, six hundred twelve million, two hundred sixteen thousand, three hundred five".