505040103 has 20 divisors (see below), whose sum is σ = 762232240. Its totient is φ = 333217152.

The previous prime is 505040101. The next prime is 505040113. The reversal of 505040103 is 301040505.

It is not a de Polignac number, because 505040103 - 2¹ = 505040101 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 (505040101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24283 + ... + 39996.

It is an arithmetic number, because the mean of its divisors is an integer number (38111612).

Almost surely, 2^505040103 is an apocalyptic number.

505040103 is a deficient number, since it is larger than the sum of its proper divisors (257192137).

505040103 is an equidigital number, since it uses as much as digits as its factorization.

505040103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64388 (or 64379 counting only the distinct ones).

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

The square root of 505040103 is about 22473.0973165694. The cubic root of 505040103 is about 796.3585031719.

Adding to 505040103 its reverse (301040505), we get a palindrome (806080608).

The spelling of 505040103 in words is "five hundred five million, forty thousand, one hundred three".