5050000561 has 2 divisors, whose sum is σ = 5050000562. Its totient is φ = 5050000560.

The previous prime is 5050000547. The next prime is 5050000567. The reversal of 5050000561 is 1650000505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4577199025 + 472801536 = 67655^2 + 21744^2 .

It is a cyclic number.

It is not a de Polignac number, because 5050000561 - 2¹⁹ = 5049476273 is a prime.

It is a super-2 number, since 2×5050000561² = 51005011332200629442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5050000567) 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, 2525000280 + 2525000281.

It is an arithmetic number, because the mean of its divisors is an integer number (2525000281).

Almost surely, 2^5050000561 is an apocalyptic number.

It is an amenable number.

5050000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5050000561 is an equidigital number, since it uses as much as digits as its factorization.

5050000561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 5050000561 is about 71063.3559649416. The cubic root of 5050000561 is about 1715.6570351520.

The spelling of 5050000561 in words is "five billion, fifty million, five hundred sixty-one", and thus it is an aban number.