503045332455450 has 48 divisors (see below), whose sum is σ = 1247572932070176. Its totient is φ = 134143216872000.

The previous prime is 503045332455409. The next prime is 503045332455451. The reversal of 503045332455450 is 54554233540305.

It is a self number, because there is not a number n which added to its sum of digits gives 503045332455450.

It is not an unprimeable number, because it can be changed into a prime (503045332455451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18398352 + ... + 36668651.

It is an arithmetic number, because the mean of its divisors is an integer number (25991102751462).

Almost surely, 2^{503045332455450} is an apocalyptic number.

503045332455450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

503045332455450 is an abundant number, since it is smaller than the sum of its proper divisors (744527599614726).

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

503045332455450 is a wasteful number, since it uses less digits than its factorization.

503045332455450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55127919 (or 55127914 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 48.

Adding to 503045332455450 its reverse (54554233540305), we get a palindrome (557599565995755).

The spelling of 503045332455450 in words is "five hundred three trillion, forty-five billion, three hundred thirty-two million, four hundred fifty-five thousand, four hundred fifty".