5605521 has 8 divisors (see below), whose sum is σ = 7579584. Its totient is φ = 3684240.

The previous prime is 5605499. The next prime is 5605553. The reversal of 5605521 is 1255065.

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

It is not a de Polignac number, because 5605521 - 2⁵ = 5605489 is a prime.

5605521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5605491 and 5605500.

It is not an unprimeable number, because it can be changed into a prime (5600521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12946 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (947448).

Almost surely, 2^5605521 is an apocalyptic number.

It is an amenable number.

5605521 is a deficient number, since it is larger than the sum of its proper divisors (1974063).

5605521 is a wasteful number, since it uses less digits than its factorization.

5605521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26391.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 5605521 is about 2367.5981500246. The cubic root of 5605521 is about 177.6391397281.

The spelling of 5605521 in words is "five million, six hundred five thousand, five hundred twenty-one".