50381321 has 4 divisors (see below), whose sum is σ = 51453312. Its totient is φ = 49309332.

The previous prime is 50381311. The next prime is 50381327. The reversal of 50381321 is 12318305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50381321 - 2⁶ = 50381257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50381327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535925 + ... + 536018.

It is an arithmetic number, because the mean of its divisors is an integer number (12863328).

Almost surely, 2^50381321 is an apocalyptic number.

It is an amenable number.

50381321 is a deficient number, since it is larger than the sum of its proper divisors (1071991).

50381321 is a wasteful number, since it uses less digits than its factorization.

50381321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071990.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 50381321 is about 7097.9800647790. The cubic root of 50381321 is about 369.3373114872.

Adding to 50381321 its reverse (12318305), we get a palindrome (62699626).

The spelling of 50381321 in words is "fifty million, three hundred eighty-one thousand, three hundred twenty-one".