51696288 has 72 divisors (see below), whose sum is σ = 168019488. Its totient is φ = 14769792.

The previous prime is 51696259. The next prime is 51696311. The reversal of 51696288 is 88269615.

51696288 is a `hidden beast` number, since 5 + 16 + 9 + 628 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10806 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (2333604).

Almost surely, 2^51696288 is an apocalyptic number.

It is an amenable number.

51696288 is an abundant number, since it is smaller than the sum of its proper divisors (116323200).

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

51696288 is a wasteful number, since it uses less digits than its factorization.

51696288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25666 (or 25655 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 51696288 is about 7190.0130737016. The cubic root of 51696288 is about 372.5230242664.

It can be divided in two parts, 51696 and 288, that added together give a square (51984 = 228²).

The spelling of 51696288 in words is "fifty-one million, six hundred ninety-six thousand, two hundred eighty-eight".