5044637561 has 2 divisors, whose sum is σ = 5044637562. Its totient is φ = 5044637560.

The previous prime is 5044637557. The next prime is 5044637567. The reversal of 5044637561 is 1657364405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4518393961 + 526243600 = 67219^2 + 22940^2 .

It is a cyclic number.

It is not a de Polignac number, because 5044637561 - 2² = 5044637557 is a prime.

It is a super-3 number, since 3×5044637561³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (5044637567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2522318780 + 2522318781.

It is an arithmetic number, because the mean of its divisors is an integer number (2522318781).

Almost surely, 2^5044637561 is an apocalyptic number.

It is an amenable number.

5044637561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5044637561 is an equidigital number, since it uses as much as digits as its factorization.

5044637561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 5044637561 is about 71025.6120072189. The cubic root of 5044637561 is about 1715.0494888353.

The spelling of 5044637561 in words is "five billion, forty-four million, six hundred thirty-seven thousand, five hundred sixty-one".