50543993 has 2 divisors, whose sum is σ = 50543994. Its totient is φ = 50543992.

The previous prime is 50543989. The next prime is 50544017. The reversal of 50543993 is 39934505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 3374569 = 6868^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 50543993 - 2² = 50543989 is a prime.

It is not a weakly prime, because it can be changed into another prime (50543923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25271996 + 25271997.

It is an arithmetic number, because the mean of its divisors is an integer number (25271997).

Almost surely, 2^50543993 is an apocalyptic number.

It is an amenable number.

50543993 is a deficient number, since it is larger than the sum of its proper divisors (1).

50543993 is an equidigital number, since it uses as much as digits as its factorization.

50543993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 50543993 is about 7109.4298646235. The cubic root of 50543993 is about 369.7343917964.

The spelling of 50543993 in words is "fifty million, five hundred forty-three thousand, nine hundred ninety-three".