503455500553043 has 4 divisors (see below), whose sum is σ = 506237022655728. Its totient is φ = 500673978450360.

The previous prime is 503455500553001. The next prime is 503455500553097. The reversal of 503455500553043 is 340355005554305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503455500553043 - 2¹⁶ = 503455500487507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503455500559043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390761051071 + ... + 1390761051432.

It is an arithmetic number, because the mean of its divisors is an integer number (126559255663932).

Almost surely, 2^{503455500553043} is an apocalyptic number.

503455500553043 is a deficient number, since it is larger than the sum of its proper divisors (2781522102685).

503455500553043 is a wasteful number, since it uses less digits than its factorization.

503455500553043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781522102684.

The product of its (nonzero) digits is 6750000, while the sum is 47.

The spelling of 503455500553043 in words is "five hundred three trillion, four hundred fifty-five billion, five hundred million, five hundred fifty-three thousand, forty-three".