50783791 has 4 divisors (see below), whose sum is σ = 51095512. Its totient is φ = 50472072.

The previous prime is 50783779. The next prime is 50783809. The reversal of 50783791 is 19738705.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50783791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50783741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155616 + ... + 155941.

It is an arithmetic number, because the mean of its divisors is an integer number (12773878).

Almost surely, 2^50783791 is an apocalyptic number.

50783791 is a deficient number, since it is larger than the sum of its proper divisors (311721).

50783791 is a wasteful number, since it uses less digits than its factorization.

50783791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311720.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 50783791 is about 7126.2746929935. The cubic root of 50783791 is about 370.3181850243.

The spelling of 50783791 in words is "fifty million, seven hundred eighty-three thousand, seven hundred ninety-one".