5561050555537 has 2 divisors, whose sum is σ = 5561050555538. Its totient is φ = 5561050555536.

The previous prime is 5561050555493. The next prime is 5561050555651. The reversal of 5561050555537 is 7355550501655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5459330383441 + 101720172096 = 2336521^2 + 318936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561050555537 is a prime.

It is not a weakly prime, because it can be changed into another prime (5561050555337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780525277768 + 2780525277769.

It is an arithmetic number, because the mean of its divisors is an integer number (2780525277769).

Almost surely, 2^{5561050555537} is an apocalyptic number.

It is an amenable number.

5561050555537 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561050555537 is an equidigital number, since it uses as much as digits as its factorization.

5561050555537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9843750, while the sum is 52.

The spelling of 5561050555537 in words is "five trillion, five hundred sixty-one billion, fifty million, five hundred fifty-five thousand, five hundred thirty-seven".