5520201561 has 24 divisors (see below), whose sum is σ = 9202949184. Its totient is φ = 3123165600.

The previous prime is 5520201539. The next prime is 5520201581. The reversal of 5520201561 is 1651020255.

It is not a de Polignac number, because 5520201561 - 2³⁰ = 4446459737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5520201581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427411 + ... + 440136.

It is an arithmetic number, because the mean of its divisors is an integer number (383456216).

Almost surely, 2^5520201561 is an apocalyptic number.

It is an amenable number.

5520201561 is a deficient number, since it is larger than the sum of its proper divisors (3682747623).

5520201561 is a wasteful number, since it uses less digits than its factorization.

5520201561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867661 (or 867658 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5520201561 is about 74298.0589315764. The cubic root of 5520201561 is about 1767.3326951494.

The spelling of 5520201561 in words is "five billion, five hundred twenty million, two hundred one thousand, five hundred sixty-one".