5520591 has 12 divisors (see below), whose sum is σ = 8027032. Its totient is φ = 3656016.

The previous prime is 5520589. The next prime is 5520607. The reversal of 5520591 is 1950255.

5520591 is a `hidden beast` number, since 55 + 20 + 591 = 666.

It is not a de Polignac number, because 5520591 - 2¹ = 5520589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520521) 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 11 ways as a sum of consecutive naturals, for example, 541 + ... + 3366.

Almost surely, 2^5520591 is an apocalyptic number.

5520591 is a deficient number, since it is larger than the sum of its proper divisors (2506441).

5520591 is a wasteful number, since it uses less digits than its factorization.

5520591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 5520591 is about 2349.5937946803. The cubic root of 5520591 is about 176.7374254749.

The spelling of 5520591 in words is "five million, five hundred twenty thousand, five hundred ninety-one".