51070171 has 4 divisors (see below), whose sum is σ = 51123952. Its totient is φ = 51016392.

The previous prime is 51070169. The next prime is 51070177. The reversal of 51070171 is 17107015.

51070171 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 51070171 - 2¹ = 51070169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51070177) 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, 25440 + ... + 27373.

It is an arithmetic number, because the mean of its divisors is an integer number (12780988).

Almost surely, 2^51070171 is an apocalyptic number.

51070171 is a deficient number, since it is larger than the sum of its proper divisors (53781).

51070171 is an equidigital number, since it uses as much as digits as its factorization.

51070171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53780.

The product of its (nonzero) digits is 245, while the sum is 22.

The square root of 51070171 is about 7146.3396924580. The cubic root of 51070171 is about 371.0129801742.

Adding to 51070171 its reverse (17107015), we get a palindrome (68177186).

The spelling of 51070171 in words is "fifty-one million, seventy thousand, one hundred seventy-one".