505133903 has 16 divisors (see below), whose sum is σ = 540652896. Its totient is φ = 470292480.

The previous prime is 505133897. The next prime is 505133911. The reversal of 505133903 is 309331505.

It is a cyclic number.

It is not a de Polignac number, because 505133903 - 2⁴ = 505133887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505133963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1166375 + ... + 1166807.

It is an arithmetic number, because the mean of its divisors is an integer number (33790806).

Almost surely, 2^505133903 is an apocalyptic number.

505133903 is a deficient number, since it is larger than the sum of its proper divisors (35518993).

505133903 is a wasteful number, since it uses less digits than its factorization.

505133903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 6075, while the sum is 29.

The square root of 505133903 is about 22475.1841594235. The cubic root of 505133903 is about 796.4078020976.

The spelling of 505133903 in words is "five hundred five million, one hundred thirty-three thousand, nine hundred three".