5263281 has 6 divisors (see below), whose sum is σ = 7602530. Its totient is φ = 3508848.

The previous prime is 5263267. The next prime is 5263309. The reversal of 5263281 is 1823625.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 1199025 = 2016^2 + 1095^2 .

It is not a de Polignac number, because 5263281 - 2¹⁵ = 5230513 is a prime.

It is a super-2 number, since 2×5263281² = 55404253769922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5263241) 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 5 ways as a sum of consecutive naturals, for example, 292396 + ... + 292413.

Almost surely, 2^5263281 is an apocalyptic number.

It is an amenable number.

5263281 is a deficient number, since it is larger than the sum of its proper divisors (2339249).

5263281 is a wasteful number, since it uses less digits than its factorization.

5263281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584815 (or 584812 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5263281 is about 2294.1841687188. The cubic root of 5263281 is about 173.9477647405.

The spelling of 5263281 in words is "five million, two hundred sixty-three thousand, two hundred eighty-one".