50396681 has 4 divisors (see below), whose sum is σ = 50422164. Its totient is φ = 50371200.

The previous prime is 50396651. The next prime is 50396699. The reversal of 50396681 is 18669305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27510025 + 22886656 = 5245^2 + 4784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50396681 is a prime.

It is a super-2 number, since 2×50396681² = 5079650911631522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50396651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9500 + ... + 13821.

It is an arithmetic number, because the mean of its divisors is an integer number (12605541).

Almost surely, 2^50396681 is an apocalyptic number.

It is an amenable number.

50396681 is a deficient number, since it is larger than the sum of its proper divisors (25483).

50396681 is a wasteful number, since it uses less digits than its factorization.

50396681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25482.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 50396681 is about 7099.0619802901. The cubic root of 50396681 is about 369.3748415649.

The spelling of 50396681 in words is "fifty million, three hundred ninety-six thousand, six hundred eighty-one".