503440003535452 has 18 divisors (see below), whose sum is σ = 901985328143088. Its totient is φ = 245866048234632.

The previous prime is 503440003535431. The next prime is 503440003535509. The reversal of 503440003535452 is 254535300044305.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 503440003535399 and 503440003535408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34034606148 + ... + 34034620939.

Almost surely, 2^{503440003535452} is an apocalyptic number.

It is an amenable number.

503440003535452 is a deficient number, since it is larger than the sum of its proper divisors (398545324607636).

503440003535452 is a wasteful number, since it uses less digits than its factorization.

503440003535452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68069227177 (or 68069227132 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 43.

Adding to 503440003535452 its reverse (254535300044305), we get a palindrome (757975303579757).

The spelling of 503440003535452 in words is "five hundred three trillion, four hundred forty billion, three million, five hundred thirty-five thousand, four hundred fifty-two".