505250 has 32 divisors (see below), whose sum is σ = 988416. Its totient is φ = 193200.

The previous prime is 505237. The next prime is 505277. The reversal of 505250 is 52505.

It is a happy number.

505250 is nontrivially palindromic in base 9.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

505250 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 10727 + ... + 10773.

It is an arithmetic number, because the mean of its divisors is an integer number (30888).

2⁵⁰⁵²⁵⁰ is an apocalyptic number.

505250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505250 is a deficient number, since it is larger than the sum of its proper divisors (483166).

505250 is a wasteful number, since it uses less digits than its factorization.

505250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 505250 is about 710.8093977994. The cubic root of 505250 is about 79.6468811316.

Adding to 505250 its reverse (52505), we get a palindrome (557755).

The spelling of 505250 in words is "five hundred five thousand, two hundred fifty".