5653521 has 12 divisors (see below), whose sum is σ = 8448180. Its totient is φ = 3638880.

The previous prime is 5653519. The next prime is 5653523. The reversal of 5653521 is 1253565.

5653521 is a `hidden beast` number, since 5 + 653 + 5 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (5653519) and next prime (5653523).

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 3294225 = 1536^2 + 1815^2 .

It is not a de Polignac number, because 5653521 - 2¹ = 5653519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5653523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10570 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (704015).

Almost surely, 2^5653521 is an apocalyptic number.

It is an amenable number.

5653521 is a deficient number, since it is larger than the sum of its proper divisors (2794659).

5653521 is a wasteful number, since it uses less digits than its factorization.

5653521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21696 (or 21693 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 5653521 is about 2377.7133973631. The cubic root of 5653521 is about 178.1447398253.

The spelling of 5653521 in words is "five million, six hundred fifty-three thousand, five hundred twenty-one".