5601521 has 4 divisors (see below), whose sum is σ = 5617152. Its totient is φ = 5585892.

The previous prime is 5601511. The next prime is 5601527. The reversal of 5601521 is 1251065.

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 5601521 - 2¹⁴ = 5585137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5601493 and 5601502.

It is not an unprimeable number, because it can be changed into a prime (5601527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7265 + ... + 7998.

It is an arithmetic number, because the mean of its divisors is an integer number (1404288).

Almost surely, 2^5601521 is an apocalyptic number.

It is an amenable number.

5601521 is a deficient number, since it is larger than the sum of its proper divisors (15631).

5601521 is a wasteful number, since it uses less digits than its factorization.

5601521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15630.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5601521 is about 2366.7532613266. The cubic root of 5601521 is about 177.5968762978.

Adding to 5601521 its reverse (1251065), we get a palindrome (6852586).

The spelling of 5601521 in words is "five million, six hundred one thousand, five hundred twenty-one".