50891393 has 8 divisors (see below), whose sum is σ = 58533312. Its totient is φ = 43342416.

The previous prime is 50891389. The next prime is 50891411. The reversal of 50891393 is 39319805.

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 50891393 - 2² = 50891389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50891363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22055 + ... + 24252.

It is an arithmetic number, because the mean of its divisors is an integer number (7316664).

Almost surely, 2^50891393 is an apocalyptic number.

It is an amenable number.

50891393 is a deficient number, since it is larger than the sum of its proper divisors (7641919).

50891393 is a wasteful number, since it uses less digits than its factorization.

50891393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46471.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 50891393 is about 7133.8203649938. The cubic root of 50891393 is about 370.5795470765.

The spelling of 50891393 in words is "fifty million, eight hundred ninety-one thousand, three hundred ninety-three".