51394171 has 4 divisors (see below), whose sum is σ = 52487712. Its totient is φ = 50300632.

The previous prime is 51394157. The next prime is 51394193. The reversal of 51394171 is 17149315.

51394171 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 51394171 - 2¹⁷ = 51263099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51394151) 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, 546700 + ... + 546793.

It is an arithmetic number, because the mean of its divisors is an integer number (13121928).

Almost surely, 2^51394171 is an apocalyptic number.

51394171 is a deficient number, since it is larger than the sum of its proper divisors (1093541).

51394171 is a wasteful number, since it uses less digits than its factorization.

51394171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093540.

The product of its digits is 3780, while the sum is 31.

The square root of 51394171 is about 7168.9727995020. The cubic root of 51394171 is about 371.7959218056.

The spelling of 51394171 in words is "fifty-one million, three hundred ninety-four thousand, one hundred seventy-one".