51163851 has 8 divisors (see below), whose sum is σ = 69805120. Its totient is φ = 33315912.

The previous prime is 51163843. The next prime is 51163901. The reversal of 51163851 is 15836115.

51163851 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 not a de Polignac number, because 51163851 - 2³ = 51163843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51163841) 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, 198181 + ... + 198438.

It is an arithmetic number, because the mean of its divisors is an integer number (8725640).

Almost surely, 2^51163851 is an apocalyptic number.

51163851 is a deficient number, since it is larger than the sum of its proper divisors (18641269).

51163851 is a wasteful number, since it uses less digits than its factorization.

51163851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396665.

The product of its digits is 3600, while the sum is 30.

The square root of 51163851 is about 7152.8910938165. The cubic root of 51163851 is about 371.2396961169.

Adding to 51163851 its reverse (15836115), we get a palindrome (66999966).

The spelling of 51163851 in words is "fifty-one million, one hundred sixty-three thousand, eight hundred fifty-one".