5521558521 has 16 divisors (see below), whose sum is σ = 7614217728. Its totient is φ = 3555427200.

The previous prime is 5521558513. The next prime is 5521558541. The reversal of 5521558521 is 1258551255.

It is not a de Polignac number, because 5521558521 - 2³ = 5521558513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5521558521.

It is not an unprimeable number, because it can be changed into a prime (5521558541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8526 + ... + 105431.

It is an arithmetic number, because the mean of its divisors is an integer number (475888608).

Almost surely, 2^5521558521 is an apocalyptic number.

It is an amenable number.

5521558521 is a deficient number, since it is larger than the sum of its proper divisors (2092659207).

5521558521 is a wasteful number, since it uses less digits than its factorization.

5521558521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114512.

The product of its digits is 100000, while the sum is 39.

The square root of 5521558521 is about 74307.1902375537. The cubic root of 5521558521 is about 1767.4774968243.

The spelling of 5521558521 in words is "five billion, five hundred twenty-one million, five hundred fifty-eight thousand, five hundred twenty-one".