505550003003 has 4 divisors (see below), whose sum is σ = 521858067648. Its totient is φ = 489241938360.

The previous prime is 505550002961. The next prime is 505550003017. The reversal of 505550003003 is 300300055505.

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 505550003003 - 2¹⁸ = 505549740859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505550003053) 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, 8154032276 + ... + 8154032337.

It is an arithmetic number, because the mean of its divisors is an integer number (130464516912).

Almost surely, 2^505550003003 is an apocalyptic number.

505550003003 is a deficient number, since it is larger than the sum of its proper divisors (16308064645).

505550003003 is a wasteful number, since it uses less digits than its factorization.

505550003003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16308064644.

The product of its (nonzero) digits is 5625, while the sum is 26.

Adding to 505550003003 its reverse (300300055505), we get a palindrome (805850058508).

The spelling of 505550003003 in words is "five hundred five billion, five hundred fifty million, three thousand, three".