503426545503 has 16 divisors (see below), whose sum is σ = 769592818176. Its totient is φ = 286747316640.

The previous prime is 503426545493. The next prime is 503426545507. The reversal of 503426545503 is 305545624305.

It is a happy number.

It is not a de Polignac number, because 503426545503 - 2¹⁰ = 503426544479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503426545507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38534776 + ... + 38547837.

It is an arithmetic number, because the mean of its divisors is an integer number (48099551136).

Almost surely, 2^503426545503 is an apocalyptic number.

503426545503 is a deficient number, since it is larger than the sum of its proper divisors (266166272673).

503426545503 is a wasteful number, since it uses less digits than its factorization.

503426545503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77082934.

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 503426545503 in words is "five hundred three billion, four hundred twenty-six million, five hundred forty-five thousand, five hundred three".