51032971 has 4 divisors (see below), whose sum is σ = 55672344. Its totient is φ = 46393600.

The previous prime is 51032957. The next prime is 51032983. The reversal of 51032971 is 17923015.

51032971 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 not a de Polignac number, because 51032971 - 2⁵ = 51032939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51032941) 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, 2319670 + ... + 2319691.

It is an arithmetic number, because the mean of its divisors is an integer number (13918086).

Almost surely, 2^51032971 is an apocalyptic number.

51032971 is a deficient number, since it is larger than the sum of its proper divisors (4639373).

51032971 is a wasteful number, since it uses less digits than its factorization.

51032971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639372.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 51032971 is about 7143.7364873013. The cubic root of 51032971 is about 370.9228751609.

Adding to 51032971 its reverse (17923015), we get a palindrome (68955986).

It can be divided in two parts, 51032 and 971, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51032971 in words is "fifty-one million, thirty-two thousand, nine hundred seventy-one".