51182208 has 192 divisors, whose sum is σ = 183942720. Its totient is φ = 13271040.

The previous prime is 51182207. The next prime is 51182213. The reversal of 51182208 is 80228115.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (51182207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88416 + ... + 88992.

It is an arithmetic number, because the mean of its divisors is an integer number (958035).

Almost surely, 2^51182208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51182208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91971360).

51182208 is an abundant number, since it is smaller than the sum of its proper divisors (132760512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51182208 is a wasteful number, since it uses less digits than its factorization.

51182208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 51182208 is about 7154.1741661774. The cubic root of 51182208 is about 371.2840896493.

The spelling of 51182208 in words is "fifty-one million, one hundred eighty-two thousand, two hundred eight".