51466688 has 56 divisors (see below), whose sum is σ = 125711712. Its totient is φ = 20358144.

The previous prime is 51466673. The next prime is 51466697. The reversal of 51466688 is 88666415.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1406 + ... + 10242.

It is an arithmetic number, because the mean of its divisors is an integer number (2244852).

Almost surely, 2^51466688 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 51466688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62855856).

51466688 is an abundant number, since it is smaller than the sum of its proper divisors (74245024).

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

51466688 is a wasteful number, since it uses less digits than its factorization.

51466688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869 (or 8859 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 51466688 is about 7174.0287147460. The cubic root of 51466688 is about 371.9707072167.

The spelling of 51466688 in words is "fifty-one million, four hundred sixty-six thousand, six hundred eighty-eight".