5215281 has 4 divisors (see below), whose sum is σ = 6953712. Its totient is φ = 3476852.

The previous prime is 5215279. The next prime is 5215297. The reversal of 5215281 is 1825125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5215281 - 2¹ = 5215279 is a prime.

It is a super-2 number, since 2×5215281² = 54398311817922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5215201) 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 3 ways as a sum of consecutive naturals, for example, 869211 + ... + 869216.

It is an arithmetic number, because the mean of its divisors is an integer number (1738428).

Almost surely, 2^5215281 is an apocalyptic number.

It is an amenable number.

5215281 is a deficient number, since it is larger than the sum of its proper divisors (1738431).

5215281 is a wasteful number, since it uses less digits than its factorization.

5215281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738430.

The product of its digits is 800, while the sum is 24.

The square root of 5215281 is about 2283.6989731574. The cubic root of 5215281 is about 173.4173602294.

The spelling of 5215281 in words is "five million, two hundred fifteen thousand, two hundred eighty-one".