503451344240540 has 24 divisors (see below), whose sum is σ = 1069127011930320. Its totient is φ = 199117835024768.

The previous prime is 503451344240447. The next prime is 503451344240563. The reversal of 503451344240540 is 45042443154305.

It is a junction number, because it is equal to n+sod(n) for n = 503451344240491 and 503451344240500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141418915142 + ... + 141418918701.

It is an arithmetic number, because the mean of its divisors is an integer number (44546958830430).

Almost surely, 2^{503451344240540} is an apocalyptic number.

It is an amenable number.

503451344240540 is an abundant number, since it is smaller than the sum of its proper divisors (565675667689780).

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

503451344240540 is a wasteful number, since it uses less digits than its factorization.

503451344240540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282837833941 (or 282837833939 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

Adding to 503451344240540 its reverse (45042443154305), we get a palindrome (548493787394845).

The spelling of 503451344240540 in words is "five hundred three trillion, four hundred fifty-one billion, three hundred forty-four million, two hundred forty thousand, five hundred forty".