505005550503 has 8 divisors (see below), whose sum is σ = 673345221888. Its totient is φ = 336668123064.

The previous prime is 505005550459. The next prime is 505005550583. The reversal of 505005550503 is 305055500505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505005550503 - 2¹⁰ = 505005549479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505005550583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63426 + ... + 1006992.

It is an arithmetic number, because the mean of its divisors is an integer number (84168152736).

Almost surely, 2^505005550503 is an apocalyptic number.

505005550503 is a deficient number, since it is larger than the sum of its proper divisors (168339671385).

505005550503 is a wasteful number, since it uses less digits than its factorization.

505005550503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121973.

The product of its (nonzero) digits is 46875, while the sum is 33.

The spelling of 505005550503 in words is "five hundred five billion, five million, five hundred fifty thousand, five hundred three".