8053553561 has 2 divisors, whose sum is σ = 8053553562. Its totient is φ = 8053553560.

The previous prime is 8053553507. The next prime is 8053553593. The reversal of 8053553561 is 1653553508.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7948614025 + 104939536 = 89155^2 + 10244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8053553561 is a prime.

It is not a weakly prime, because it can be changed into another prime (8053553861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4026776780 + 4026776781.

It is an arithmetic number, because the mean of its divisors is an integer number (4026776781).

Almost surely, 2^8053553561 is an apocalyptic number.

It is an amenable number.

8053553561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8053553561 is an equidigital number, since it uses as much as digits as its factorization.

8053553561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 8053553561 is about 89741.5932608732. The cubic root of 8053553561 is about 2004.4528753429.

The spelling of 8053553561 in words is "eight billion, fifty-three million, five hundred fifty-three thousand, five hundred sixty-one".