50991422 has 8 divisors (see below), whose sum is σ = 77628936. Its totient is φ = 25115112.

The previous prime is 50991407. The next prime is 50991427. The reversal of 50991422 is 22419905.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50991427) 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, 190133 + ... + 190400.

It is an arithmetic number, because the mean of its divisors is an integer number (9703617).

Almost surely, 2^50991422 is an apocalyptic number.

50991422 is a deficient number, since it is larger than the sum of its proper divisors (26637514).

50991422 is a wasteful number, since it uses less digits than its factorization.

50991422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380602.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 50991422 is about 7140.8278231589. The cubic root of 50991422 is about 370.8221843160.

The spelling of 50991422 in words is "fifty million, nine hundred ninety-one thousand, four hundred twenty-two".