5527521 has 36 divisors (see below), whose sum is σ = 8856848. Its totient is φ = 3442824.

The previous prime is 5527481. The next prime is 5527531. The reversal of 5527521 is 1257255.

It is a happy number.

It is not a de Polignac number, because 5527521 - 2⁹ = 5527009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5527531) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128526 + ... + 128568.

Almost surely, 2^5527521 is an apocalyptic number.

It is an amenable number.

5527521 is a deficient number, since it is larger than the sum of its proper divisors (3329327).

5527521 is an equidigital number, since it uses as much as digits as its factorization.

5527521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 69 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 5527521 is about 2351.0680551613. The cubic root of 5527521 is about 176.8113474047.

The spelling of 5527521 in words is "five million, five hundred twenty-seven thousand, five hundred twenty-one".