50105557 has 2 divisors, whose sum is σ = 50105558. Its totient is φ = 50105556.

The previous prime is 50105543. The next prime is 50105593. The reversal of 50105557 is 75550105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39614436 + 10491121 = 6294^2 + 3239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50105557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50105507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25052778 + 25052779.

It is an arithmetic number, because the mean of its divisors is an integer number (25052779).

Almost surely, 2^50105557 is an apocalyptic number.

It is an amenable number.

50105557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50105557 is an equidigital number, since it uses as much as digits as its factorization.

50105557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 50105557 is about 7078.5278836775. The cubic root of 50105557 is about 368.6622178485.

The spelling of 50105557 in words is "fifty million, one hundred five thousand, five hundred fifty-seven".