503505400054 has 16 divisors (see below), whose sum is σ = 756462351168. Its totient is φ = 251351597952.

The previous prime is 503505400007. The next prime is 503505400157. The reversal of 503505400054 is 450004505305.

It is a junction number, because it is equal to n+sod(n) for n = 503505399989 and 503505400025.

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, 3173134 + ... + 3328030.

It is an arithmetic number, because the mean of its divisors is an integer number (47278896948).

Almost surely, 2^503505400054 is an apocalyptic number.

503505400054 is a deficient number, since it is larger than the sum of its proper divisors (252956951114).

503505400054 is a wasteful number, since it uses less digits than its factorization.

503505400054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157479.

The product of its (nonzero) digits is 30000, while the sum is 31.

Adding to 503505400054 its reverse (450004505305), we get a palindrome (953509905359).

The spelling of 503505400054 in words is "five hundred three billion, five hundred five million, four hundred thousand, fifty-four".