50383781 has 4 divisors (see below), whose sum is σ = 57581472. Its totient is φ = 43186092.

The previous prime is 50383771. The next prime is 50383783. The reversal of 50383781 is 18738305.

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 50383781 - 2¹⁰ = 50382757 is a prime.

It is a super-2 number, since 2×50383781² = 5077050775711922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50383783) 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, 3598835 + ... + 3598848.

It is an arithmetic number, because the mean of its divisors is an integer number (14395368).

Almost surely, 2^50383781 is an apocalyptic number.

It is an amenable number.

50383781 is a deficient number, since it is larger than the sum of its proper divisors (7197691).

50383781 is an equidigital number, since it uses as much as digits as its factorization.

50383781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7197690.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 50383781 is about 7098.1533514006. The cubic root of 50383781 is about 369.3433226767.

The spelling of 50383781 in words is "fifty million, three hundred eighty-three thousand, seven hundred eighty-one".