50136567449 has 2 divisors, whose sum is σ = 50136567450. Its totient is φ = 50136567448.

The previous prime is 50136567391. The next prime is 50136567493. The reversal of 50136567449 is 94476563105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49961190400 + 175377049 = 223520^2 + 13243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50136567449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50136567397 and 50136567406.

It is not a weakly prime, because it can be changed into another prime (50136567149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25068283724 + 25068283725.

It is an arithmetic number, because the mean of its divisors is an integer number (25068283725).

Almost surely, 2^50136567449 is an apocalyptic number.

It is an amenable number.

50136567449 is a deficient number, since it is larger than the sum of its proper divisors (1).

50136567449 is an equidigital number, since it uses as much as digits as its factorization.

50136567449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 50136567449 in words is "fifty billion, one hundred thirty-six million, five hundred sixty-seven thousand, four hundred forty-nine".