503661257205260 has 192 divisors, whose sum is σ = 1396409643740160. Its totient is φ = 147733575598080.

The previous prime is 503661257205121. The next prime is 503661257205307. The reversal of 503661257205260 is 62502752166305.

It is a junction number, because it is equal to n+sod(n) for n = 503661257205199 and 503661257205208.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223055996 + ... + 225302684.

It is an arithmetic number, because the mean of its divisors is an integer number (7272966894480).

Almost surely, 2^{503661257205260} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503661257205260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698204821870080).

503661257205260 is an abundant number, since it is smaller than the sum of its proper divisors (892748386534900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503661257205260 is a wasteful number, since it uses less digits than its factorization.

503661257205260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255296 (or 2255294 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 503661257205260 in words is "five hundred three trillion, six hundred sixty-one billion, two hundred fifty-seven million, two hundred five thousand, two hundred sixty".