51072118 has 8 divisors (see below), whose sum is σ = 76891680. Its totient is φ = 25441560.

The previous prime is 51072113. The next prime is 51072137. The reversal of 51072118 is 81127015.

51072118 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 a super-2 number, since 2×51072118² = 5216722474011848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51072092 and 51072101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51072113) 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, 46573 + ... + 47656.

It is an arithmetic number, because the mean of its divisors is an integer number (9611460).

Almost surely, 2^51072118 is an apocalyptic number.

51072118 is a deficient number, since it is larger than the sum of its proper divisors (25819562).

51072118 is a wasteful number, since it uses less digits than its factorization.

51072118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94502.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 51072118 is about 7146.4759147429. The cubic root of 51072118 is about 371.0176949492.

It can be divided in two parts, 5107 and 2118, that added together give a square (7225 = 85²).

The spelling of 51072118 in words is "fifty-one million, seventy-two thousand, one hundred eighteen".