51211160 has 128 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 14722560.

The previous prime is 51211159. The next prime is 51211169. The reversal of 51211160 is 6111215.

51211160 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 (51211169) 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 31 ways as a sum of consecutive naturals, for example, 39401 + ... + 40679.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^51211160 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 51211160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

51211160 is an abundant number, since it is smaller than the sum of its proper divisors (103617640).

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

51211160 is a wasteful number, since it uses less digits than its factorization.

51211160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 51211160 is about 7156.1973142165. The cubic root of 51211160 is about 371.3540839641.

Adding to 51211160 its reverse (6111215), we get a palindrome (57322375).

The spelling of 51211160 in words is "fifty-one million, two hundred eleven thousand, one hundred sixty".