51871672 has 32 divisors (see below), whose sum is σ = 102787200. Its totient is φ = 24472800.

The previous prime is 51871667. The next prime is 51871697. The reversal of 51871672 is 27617815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49797 + ... + 50827.

It is an arithmetic number, because the mean of its divisors is an integer number (3212100).

Almost surely, 2^51871672 is an apocalyptic number.

It is an amenable number.

51871672 is a deficient number, since it is larger than the sum of its proper divisors (50915528).

51871672 is a wasteful number, since it uses less digits than its factorization.

51871672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1383 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 51871672 is about 7202.1991086056. The cubic root of 51871672 is about 372.9438206472.

It can be divided in two parts, 5187 and 1672, that added together give a cube (6859 = 19³).

The spelling of 51871672 in words is "fifty-one million, eight hundred seventy-one thousand, six hundred seventy-two".