505104003 has 6 divisors (see below), whose sum is σ = 729594684. Its totient is φ = 336735996.

The previous prime is 505103993. The next prime is 505104007. The reversal of 505104003 is 300401505.

It is not a de Polignac number, because 505104003 - 2¹⁸ = 504841859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505104007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28061325 + ... + 28061342.

It is an arithmetic number, because the mean of its divisors is an integer number (121599114).

Almost surely, 2^505104003 is an apocalyptic number.

505104003 is a deficient number, since it is larger than the sum of its proper divisors (224490681).

505104003 is a wasteful number, since it uses less digits than its factorization.

505104003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56122673 (or 56122670 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 505104003 is about 22474.5189714930. The cubic root of 505104003 is about 796.3920880708.

Adding to 505104003 its reverse (300401505), we get a palindrome (805505508).

The spelling of 505104003 in words is "five hundred five million, one hundred four thousand, three".