51672171 has 8 divisors (see below), whose sum is σ = 71272080. Its totient is φ = 33260192.

The previous prime is 51672097. The next prime is 51672193. The reversal of 51672171 is 17127615.

51672171 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 51672171 - 2¹³ = 51663979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51672371) 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, 296880 + ... + 297053.

It is an arithmetic number, because the mean of its divisors is an integer number (8909010).

Almost surely, 2^51672171 is an apocalyptic number.

51672171 is a deficient number, since it is larger than the sum of its proper divisors (19599909).

51672171 is a wasteful number, since it uses less digits than its factorization.

51672171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593965.

The product of its digits is 2940, while the sum is 30.

The square root of 51672171 is about 7188.3357601047. The cubic root of 51672171 is about 372.4650862882.

Adding to 51672171 its reverse (17127615), we get a palindrome (68799786).

The spelling of 51672171 in words is "fifty-one million, six hundred seventy-two thousand, one hundred seventy-one".