50437993 has 4 divisors (see below), whose sum is σ = 51801220. Its totient is φ = 49074768.

The previous prime is 50437969. The next prime is 50437999. The reversal of 50437993 is 39973405.

50437993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39973405 = 5 ⋅7994681.

It can be written as a sum of positive squares in 2 ways, for example, as 27751824 + 22686169 = 5268^2 + 4763^2 .

It is a cyclic number.

It is not a de Polignac number, because 50437993 - 2²¹ = 48340841 is a prime.

It is a super-2 number, since 2×50437993² = 5087982275736098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50437999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681558 + ... + 681631.

It is an arithmetic number, because the mean of its divisors is an integer number (12950305).

Almost surely, 2^50437993 is an apocalyptic number.

It is an amenable number.

50437993 is a deficient number, since it is larger than the sum of its proper divisors (1363227).

50437993 is a wasteful number, since it uses less digits than its factorization.

50437993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363226.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 50437993 is about 7101.9710644299. The cubic root of 50437993 is about 369.4757440148.

The spelling of 50437993 in words is "fifty million, four hundred thirty-seven thousand, nine hundred ninety-three".