50394381 has 16 divisors (see below), whose sum is σ = 68402880. Its totient is φ = 32996480.

The previous prime is 50394367. The next prime is 50394391. The reversal of 50394381 is 18349305.

It is a cyclic number.

It is not a de Polignac number, because 50394381 - 2¹⁴ = 50377997 is a prime.

It is a super-2 number, since 2×50394381² = 5079187272746322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50394301) 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 15 ways as a sum of consecutive naturals, for example, 45646 + ... + 46736.

It is an arithmetic number, because the mean of its divisors is an integer number (4275180).

Almost surely, 2^50394381 is an apocalyptic number.

It is an amenable number.

50394381 is a deficient number, since it is larger than the sum of its proper divisors (18008499).

50394381 is a wasteful number, since it uses less digits than its factorization.

50394381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 50394381 is about 7098.8999852090. The cubic root of 50394381 is about 369.3692223122.

The spelling of 50394381 in words is "fifty million, three hundred ninety-four thousand, three hundred eighty-one".