50555605600561 has 2 divisors, whose sum is σ = 50555605600562. Its totient is φ = 50555605600560.

The previous prime is 50555605600523. The next prime is 50555605600613. The reversal of 50555605600561 is 16500650655505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49995420713536 + 560184887025 = 7070744^2 + 748455^2 .

It is a cyclic number.

It is not a de Polignac number, because 50555605600561 - 2⁷ = 50555605600433 is a prime.

It is not a weakly prime, because it can be changed into another prime (50555605604561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277802800280 + 25277802800281.

It is an arithmetic number, because the mean of its divisors is an integer number (25277802800281).

Almost surely, 2^{50555605600561} is an apocalyptic number.

It is an amenable number.

50555605600561 is a deficient number, since it is larger than the sum of its proper divisors (1).

50555605600561 is an equidigital number, since it uses as much as digits as its factorization.

50555605600561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 50555605600561 in words is "fifty trillion, five hundred fifty-five billion, six hundred five million, six hundred thousand, five hundred sixty-one".