5603281 has 4 divisors (see below), whose sum is σ = 5784064. Its totient is φ = 5422500.

The previous prime is 5603267. The next prime is 5603291. The reversal of 5603281 is 1823065.

It is a happy number.

5603281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5603281 - 2⁹ = 5602769 is a prime.

It is a super-2 number, since 2×5603281² = 62793515929922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5603231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90345 + ... + 90406.

It is an arithmetic number, because the mean of its divisors is an integer number (1446016).

Almost surely, 2^5603281 is an apocalyptic number.

It is an amenable number.

5603281 is a deficient number, since it is larger than the sum of its proper divisors (180783).

5603281 is a wasteful number, since it uses less digits than its factorization.

5603281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180782.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5603281 is about 2367.1250495063. The cubic root of 5603281 is about 177.6154746851.

The spelling of 5603281 in words is "five million, six hundred three thousand, two hundred eighty-one".