503430545544 has 32 divisors (see below), whose sum is σ = 1276302795840. Its totient is φ = 165446657600.

The previous prime is 503430545531. The next prime is 503430545581. The reversal of 503430545544 is 445545034305.

It is a junction number, because it is equal to n+sod(n) for n = 503430545496 and 503430545505.

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, 147718527 + ... + 147721934.

It is an arithmetic number, because the mean of its divisors is an integer number (39884462370).

Almost surely, 2^503430545544 is an apocalyptic number.

It is an amenable number.

503430545544 is an abundant number, since it is smaller than the sum of its proper divisors (772872250296).

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

503430545544 is a wasteful number, since it uses less digits than its factorization.

503430545544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295440541 (or 295440537 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 42.

Adding to 503430545544 its reverse (445545034305), we get a palindrome (948975579849).

The spelling of 503430545544 in words is "five hundred three billion, four hundred thirty million, five hundred forty-five thousand, five hundred forty-four".