50010056021 has 2 divisors, whose sum is σ = 50010056022. Its totient is φ = 50010056020.

The previous prime is 50010055999. The next prime is 50010056027. The reversal of 50010056021 is 12065001005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39714909796 + 10295146225 = 199286^2 + 101465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50010056021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50010055984 and 50010056002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50010056027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005028010 + 25005028011.

It is an arithmetic number, because the mean of its divisors is an integer number (25005028011).

Almost surely, 2^50010056021 is an apocalyptic number.

It is an amenable number.

50010056021 is a deficient number, since it is larger than the sum of its proper divisors (1).

50010056021 is an equidigital number, since it uses as much as digits as its factorization.

50010056021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 50010056021 its reverse (12065001005), we get a palindrome (62075057026).

The spelling of 50010056021 in words is "fifty billion, ten million, fifty-six thousand, twenty-one".