50065997 has 4 divisors (see below), whose sum is σ = 50102940. Its totient is φ = 50029056.

The previous prime is 50065991. The next prime is 50066017. The reversal of 50065997 is 79956005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79956005 = 5 ⋅15991201.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 48706441 = 1166^2 + 6979^2 .

It is a cyclic number.

It is not a de Polignac number, because 50065997 - 2¹² = 50061901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50065991) 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 in 3 ways as a sum of consecutive naturals, for example, 16358 + ... + 19175.

It is an arithmetic number, because the mean of its divisors is an integer number (12525735).

Almost surely, 2^50065997 is an apocalyptic number.

It is an amenable number.

50065997 is a deficient number, since it is larger than the sum of its proper divisors (36943).

50065997 is a wasteful number, since it uses less digits than its factorization.

50065997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36942.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 50065997 is about 7075.7329655662. The cubic root of 50065997 is about 368.5651686178.

The spelling of 50065997 in words is "fifty million, sixty-five thousand, nine hundred ninety-seven".