51859772 has 12 divisors (see below), whose sum is σ = 93884280. Its totient is φ = 25035696.

The previous prime is 51859771. The next prime is 51859777. The reversal of 51859772 is 27795815.

51859772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51859771) 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, 223418 + ... + 223649.

It is an arithmetic number, because the mean of its divisors is an integer number (7823690).

Almost surely, 2^51859772 is an apocalyptic number.

It is an amenable number.

51859772 is a deficient number, since it is larger than the sum of its proper divisors (42024508).

51859772 is a wasteful number, since it uses less digits than its factorization.

51859772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447100 (or 447098 counting only the distinct ones).

The product of its digits is 176400, while the sum is 44.

The square root of 51859772 is about 7201.3729246582. The cubic root of 51859772 is about 372.9152991651.

The spelling of 51859772 in words is "fifty-one million, eight hundred fifty-nine thousand, seven hundred seventy-two".