506281 has 2 divisors, whose sum is σ = 506282. Its totient is φ = 506280.

The previous prime is 506269. The next prime is 506291. The reversal of 506281 is 182605.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502681 + 3600 = 709^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 506281 - 2¹³ = 498089 is a prime.

It is a super-2 number, since 2×506281² = 512640901922, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (506201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253140 + 253141.

It is an arithmetic number, because the mean of its divisors is an integer number (253141).

2⁵⁰⁶²⁸¹ is an apocalyptic number.

It is an amenable number.

506281 is a deficient number, since it is larger than the sum of its proper divisors (1).

506281 is an equidigital number, since it uses as much as digits as its factorization.

506281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 506281 is about 711.5342577838. The cubic root of 506281 is about 79.7010194414.

Adding to 506281 its reverse (182605), we get a palindrome (688886).

It can be divided in two parts, 506 and 281, that added together give a palindrome (787).

The spelling of 506281 in words is "five hundred six thousand, two hundred eighty-one".