5617281 has 4 divisors (see below), whose sum is σ = 7489712. Its totient is φ = 3744852.

The previous prime is 5617253. The next prime is 5617291. The reversal of 5617281 is 1827165.

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 not a de Polignac number, because 5617281 - 2⁹ = 5616769 is a prime.

It is a super-2 number, since 2×5617281² = 63107691665922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5617211) 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, 936211 + ... + 936216.

It is an arithmetic number, because the mean of its divisors is an integer number (1872428).

Almost surely, 2^5617281 is an apocalyptic number.

It is an amenable number.

5617281 is a deficient number, since it is larger than the sum of its proper divisors (1872431).

5617281 is a wasteful number, since it uses less digits than its factorization.

5617281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872430.

The product of its digits is 3360, while the sum is 30.

The square root of 5617281 is about 2370.0803783838. The cubic root of 5617281 is about 177.7632778828.

The spelling of 5617281 in words is "five million, six hundred seventeen thousand, two hundred eighty-one".