8252281 has 4 divisors (see below), whose sum is σ = 8328100. Its totient is φ = 8176464.

The previous prime is 8252249. The next prime is 8252297. The reversal of 8252281 is 1822528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6456681 + 1795600 = 2541^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 8252281 - 2⁵ = 8252249 is a prime.

It is a super-2 number, since 2×8252281² = 136200283405922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8252381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37746 + ... + 37963.

It is an arithmetic number, because the mean of its divisors is an integer number (2082025).

Almost surely, 2^8252281 is an apocalyptic number.

It is an amenable number.

8252281 is a deficient number, since it is larger than the sum of its proper divisors (75819).

8252281 is a wasteful number, since it uses less digits than its factorization.

8252281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75818.

The product of its digits is 2560, while the sum is 28.

The square root of 8252281 is about 2872.6783669600. The cubic root of 8252281 is about 202.0806216757.

The spelling of 8252281 in words is "eight million, two hundred fifty-two thousand, two hundred eighty-one".