5221605 has 16 divisors (see below), whose sum is σ = 8423424. Its totient is φ = 2761920.

The previous prime is 5221603. The next prime is 5221631. The reversal of 5221605 is 5061225.

It is not a de Polignac number, because 5221605 - 2¹ = 5221603 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (526464).

Almost surely, 2^5221605 is an apocalyptic number.

It is an amenable number.

5221605 is a deficient number, since it is larger than the sum of its proper divisors (3201819).

5221605 is a wasteful number, since it uses less digits than its factorization.

5221605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 5221605 is about 2285.0831494718. The cubic root of 5221605 is about 173.4874266621.

The spelling of 5221605 in words is "five million, two hundred twenty-one thousand, six hundred five".