51641872 has 10 divisors (see below), whose sum is σ = 100056158. Its totient is φ = 25820928.

The previous prime is 51641851. The next prime is 51641881. The reversal of 51641872 is 27814615.

51641872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50466816 + 1175056 = 7104^2 + 1084^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1613793 + ... + 1613824.

Almost surely, 2^51641872 is an apocalyptic number.

It is an amenable number.

51641872 is a deficient number, since it is larger than the sum of its proper divisors (48414286).

51641872 is a wasteful number, since it uses less digits than its factorization.

51641872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227625 (or 3227619 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 51641872 is about 7186.2279396078. The cubic root of 51641872 is about 372.3922712962.

The spelling of 51641872 in words is "fifty-one million, six hundred forty-one thousand, eight hundred seventy-two".