5257281 has 8 divisors (see below), whose sum is σ = 7378720. Its totient is φ = 3320352.

The previous prime is 5257277. The next prime is 5257331. The reversal of 5257281 is 1827525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5257281 - 2² = 5257277 is a prime.

It is a super-2 number, since 2×5257281² = 55278007025922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5257201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46060 + ... + 46173.

It is an arithmetic number, because the mean of its divisors is an integer number (922340).

Almost surely, 2^5257281 is an apocalyptic number.

It is an amenable number.

5257281 is a deficient number, since it is larger than the sum of its proper divisors (2121439).

5257281 is a wasteful number, since it uses less digits than its factorization.

5257281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92255.

The product of its digits is 5600, while the sum is 30.

The square root of 5257281 is about 2292.8761414433. The cubic root of 5257281 is about 173.8816410032.

The spelling of 5257281 in words is "five million, two hundred fifty-seven thousand, two hundred eighty-one".