5607521 has 4 divisors (see below), whose sum is σ = 5617200. Its totient is φ = 5597844.

The previous prime is 5607517. The next prime is 5607541. The reversal of 5607521 is 1257065.

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 5607521 - 2² = 5607517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5607541) 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, 3911 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (1404300).

Almost surely, 2^5607521 is an apocalyptic number.

It is an amenable number.

5607521 is a deficient number, since it is larger than the sum of its proper divisors (9679).

5607521 is an equidigital number, since it uses as much as digits as its factorization.

5607521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 5607521 is about 2368.0204813303. The cubic root of 5607521 is about 177.6602639040.

The spelling of 5607521 in words is "five million, six hundred seven thousand, five hundred twenty-one".