50312381 has 8 divisors (see below), whose sum is σ = 57545280. Its totient is φ = 43090848.

The previous prime is 50312369. The next prime is 50312393. The reversal of 50312381 is 18321305.

It is an interprime number because it is at equal distance from previous prime (50312369) and next prime (50312393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50312381 - 2¹⁴ = 50295997 is a prime.

It is a super-2 number, since 2×50312381² = 5062671363778322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50312321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11465 + ... + 15233.

It is an arithmetic number, because the mean of its divisors is an integer number (7193160).

Almost surely, 2^50312381 is an apocalyptic number.

It is an amenable number.

50312381 is a deficient number, since it is larger than the sum of its proper divisors (7232899).

50312381 is a wasteful number, since it uses less digits than its factorization.

50312381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683.

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

The square root of 50312381 is about 7093.1220911528. The cubic root of 50312381 is about 369.1687719280.

Adding to 50312381 its reverse (18321305), we get a palindrome (68633686).

The spelling of 50312381 in words is "fifty million, three hundred twelve thousand, three hundred eighty-one".