51011171 has 8 divisors (see below), whose sum is σ = 53329920. Its totient is φ = 48700872.

The previous prime is 51011167. The next prime is 51011179. The reversal of 51011171 is 17111015.

It is a happy number.

51011171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51011171 - 2² = 51011167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011179) 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 7 ways as a sum of consecutive naturals, for example, 12446 + ... + 16028.

It is an arithmetic number, because the mean of its divisors is an integer number (6666240).

Almost surely, 2^51011171 is an apocalyptic number.

51011171 is a deficient number, since it is larger than the sum of its proper divisors (2318749).

51011171 is a wasteful number, since it uses less digits than its factorization.

51011171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 35, while the sum is 17.

The square root of 51011171 is about 7142.2105121594. The cubic root of 51011171 is about 370.8700513349.

Adding to 51011171 its reverse (17111015), we get a palindrome (68122186).

The spelling of 51011171 in words is "fifty-one million, eleven thousand, one hundred seventy-one".