505101 has 8 divisors (see below), whose sum is σ = 680544. Its totient is φ = 333200.

The previous prime is 505097. The next prime is 505111. The reversal of 505101 is 101505.

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

It is a cyclic number.

It is not a de Polignac number, because 505101 - 2² = 505097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (85068).

2⁵⁰⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

505101 is a deficient number, since it is larger than the sum of its proper divisors (175443).

505101 is a wasteful number, since it uses less digits than its factorization.

505101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 505101 is about 710.7045799768. The cubic root of 505101 is about 79.6390509802.

Adding to 505101 its reverse (101505), we get a palindrome (606606).

It can be divided in two parts, 505 and 101, that added together give a palindrome (606).

The spelling of 505101 in words is "five hundred five thousand, one hundred one".