50894569409 has 2 divisors, whose sum is σ = 50894569410. Its totient is φ = 50894569408.

The previous prime is 50894569403. The next prime is 50894569423. The reversal of 50894569409 is 90496549805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48529887025 + 2364682384 = 220295^2 + 48628^2 .

It is a cyclic number.

It is not a de Polignac number, because 50894569409 - 2²⁰ = 50893520833 is a prime.

It is not a weakly prime, because it can be changed into another prime (50894569403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25447284704 + 25447284705.

It is an arithmetic number, because the mean of its divisors is an integer number (25447284705).

Almost surely, 2^50894569409 is an apocalyptic number.

It is an amenable number.

50894569409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50894569409 is an equidigital number, since it uses as much as digits as its factorization.

50894569409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The spelling of 50894569409 in words is "fifty billion, eight hundred ninety-four million, five hundred sixty-nine thousand, four hundred nine".