50451791 has 4 divisors (see below), whose sum is σ = 54332712. Its totient is φ = 46570872.

The previous prime is 50451781. The next prime is 50451809. The reversal of 50451791 is 19715405.

50451791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 50451791 - 2¹⁸ = 50189647 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 (50451701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940441 + ... + 1940466.

It is an arithmetic number, because the mean of its divisors is an integer number (13583178).

Almost surely, 2^50451791 is an apocalyptic number.

50451791 is a deficient number, since it is larger than the sum of its proper divisors (3880921).

50451791 is a wasteful number, since it uses less digits than its factorization.

50451791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880920.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 50451791 is about 7102.9424184629. The cubic root of 50451791 is about 369.5094326504.

The spelling of 50451791 in words is "fifty million, four hundred fifty-one thousand, seven hundred ninety-one".