503221651325 has 12 divisors (see below), whose sum is σ = 624354967668. Its totient is φ = 402344985600.

The previous prime is 503221651297. The next prime is 503221651337. The reversal of 503221651325 is 523156122305.

It can be written as a sum of positive squares in 6 ways, for example, as 5673403684 + 497548247641 = 75322^2 + 705371^2 .

It is not a de Polignac number, because 503221651325 - 2³⁴ = 486041782141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5764196 + ... + 5850845.

It is an arithmetic number, because the mean of its divisors is an integer number (52029580639).

Almost surely, 2^503221651325 is an apocalyptic number.

It is an amenable number.

503221651325 is a deficient number, since it is larger than the sum of its proper divisors (121133316343).

503221651325 is a wasteful number, since it uses less digits than its factorization.

503221651325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11616784 (or 11616779 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 503221651325 in words is "five hundred three billion, two hundred twenty-one million, six hundred fifty-one thousand, three hundred twenty-five".