5281613 has 2 divisors, whose sum is σ = 5281614. Its totient is φ = 5281612.

The previous prime is 5281597. The next prime is 5281631. The reversal of 5281613 is 3161825.

Together with next prime (5281631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2778889 + 2502724 = 1667^2 + 1582^2 .

It is a cyclic number.

It is not a de Polignac number, because 5281613 - 2⁴ = 5281597 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5281643) 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 as a sum of consecutive naturals, namely, 2640806 + 2640807.

It is an arithmetic number, because the mean of its divisors is an integer number (2640807).

Almost surely, 2^5281613 is an apocalyptic number.

It is an amenable number.

5281613 is a deficient number, since it is larger than the sum of its proper divisors (1).

5281613 is an equidigital number, since it uses as much as digits as its factorization.

5281613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 5281613 is about 2298.1760158874. The cubic root of 5281613 is about 174.1494839953.

The spelling of 5281613 in words is "five million, two hundred eighty-one thousand, six hundred thirteen".