5521033561 has 2 divisors, whose sum is σ = 5521033562. Its totient is φ = 5521033560.

The previous prime is 5521033523. The next prime is 5521033589. The reversal of 5521033561 is 1653301255.

5521033561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5280783561 + 240250000 = 72669^2 + 15500^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521033561 - 2¹³ = 5521025369 is a prime.

It is not a weakly prime, because it can be changed into another prime (5521033061) 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 as a sum of consecutive naturals, namely, 2760516780 + 2760516781.

It is an arithmetic number, because the mean of its divisors is an integer number (2760516781).

Almost surely, 2^5521033561 is an apocalyptic number.

It is an amenable number.

5521033561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521033561 is an equidigital number, since it uses as much as digits as its factorization.

5521033561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 5521033561 is about 74303.6577901788. The cubic root of 5521033561 is about 1767.4214809736.

The spelling of 5521033561 in words is "five billion, five hundred twenty-one million, thirty-three thousand, five hundred sixty-one".