505234 has 4 divisors (see below), whose sum is σ = 757854. Its totient is φ = 252616.

The previous prime is 505231. The next prime is 505237. The reversal of 505234 is 432505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432505 = 5 ⋅86501.

It is an interprime number because it is at equal distance from previous prime (505231) and next prime (505237).

It can be written as a sum of positive squares in only one way, i.e., 494209 + 11025 = 703^2 + 105^2 .

It is a super-2 number, since 2×505234² = 510522789512, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (505231) 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 as a sum of consecutive naturals, namely, 126307 + ... + 126310.

2⁵⁰⁵²³⁴ is an apocalyptic number.

505234 is a deficient number, since it is larger than the sum of its proper divisors (252620).

505234 is a wasteful number, since it uses less digits than its factorization.

505234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252619.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 505234 is about 710.7981429351. The cubic root of 505234 is about 79.6460403838.

Adding to 505234 its reverse (432505), we get a palindrome (937739).

The spelling of 505234 in words is "five hundred five thousand, two hundred thirty-four".