50011993 has 2 divisors, whose sum is σ = 50011994. Its totient is φ = 50011992.

The previous prime is 50011963. The next prime is 50012003. The reversal of 50011993 is 39911005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27846729 + 22165264 = 5277^2 + 4708^2 .

It is a cyclic number.

It is not a de Polignac number, because 50011993 - 2⁵ = 50011961 is a prime.

It is not a weakly prime, because it can be changed into another prime (50011963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005996 + 25005997.

It is an arithmetic number, because the mean of its divisors is an integer number (25005997).

Almost surely, 2^50011993 is an apocalyptic number.

It is an amenable number.

50011993 is a deficient number, since it is larger than the sum of its proper divisors (1).

50011993 is an equidigital number, since it uses as much as digits as its factorization.

50011993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 50011993 is about 7071.9157941819. The cubic root of 50011993 is about 368.4326025692.

Adding to 50011993 its reverse (39911005), we get a palindrome (89922998).

The spelling of 50011993 in words is "fifty million, eleven thousand, nine hundred ninety-three".