51335860 has 24 divisors (see below), whose sum is σ = 108498600. Its totient is φ = 20402304.

The previous prime is 51335849. The next prime is 51335861. The reversal of 51335860 is 6853315.

51335860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 51294244 = 204^2 + 7162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335861) 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, 5035 + ... + 11314.

It is an arithmetic number, because the mean of its divisors is an integer number (4520775).

Almost surely, 2^51335860 is an apocalyptic number.

It is an amenable number.

51335860 is an abundant number, since it is smaller than the sum of its proper divisors (57162740).

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

51335860 is a wasteful number, since it uses less digits than its factorization.

51335860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16515 (or 16513 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 51335860 is about 7164.9047446564. The cubic root of 51335860 is about 371.6552573688.

The spelling of 51335860 in words is "fifty-one million, three hundred thirty-five thousand, eight hundred sixty".