5021288561 has 2 divisors, whose sum is σ = 5021288562. Its totient is φ = 5021288560.

The previous prime is 5021288533. The next prime is 5021288567. The reversal of 5021288561 is 1658821205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2674854961 + 2346433600 = 51719^2 + 48440^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021288561 - 2²⁶ = 4954179697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5021288567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510644280 + 2510644281.

It is an arithmetic number, because the mean of its divisors is an integer number (2510644281).

Almost surely, 2^5021288561 is an apocalyptic number.

It is an amenable number.

5021288561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5021288561 is an equidigital number, since it uses as much as digits as its factorization.

5021288561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 5021288561 is about 70861.0510859104. The cubic root of 5021288561 is about 1712.3993723243.

The spelling of 5021288561 in words is "five billion, twenty-one million, two hundred eighty-eight thousand, five hundred sixty-one".