8027051561 has 2 divisors, whose sum is σ = 8027051562. Its totient is φ = 8027051560.

The previous prime is 8027051537. The next prime is 8027051611. The reversal of 8027051561 is 1651507208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4090242025 + 3936809536 = 63955^2 + 62744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8027051561 is a prime.

It is not a weakly prime, because it can be changed into another prime (8027057561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4013525780 + 4013525781.

It is an arithmetic number, because the mean of its divisors is an integer number (4013525781).

Almost surely, 2^8027051561 is an apocalyptic number.

It is an amenable number.

8027051561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8027051561 is an equidigital number, since it uses as much as digits as its factorization.

8027051561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 8027051561 is about 89593.8143009884. The cubic root of 8027051561 is about 2002.2517605857.

Adding to 8027051561 its reverse (1651507208), we get a palindrome (9678558769).

The spelling of 8027051561 in words is "eight billion, twenty-seven million, fifty-one thousand, five hundred sixty-one".