51888128 has 30 divisors (see below), whose sum is σ = 103805856. Its totient is φ = 25935872.

The previous prime is 51888121. The next prime is 51888139. The reversal of 51888128 is 82188815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14801 + ... + 17967.

Almost surely, 2^51888128 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 51888128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51902928).

51888128 is an abundant number, since it is smaller than the sum of its proper divisors (51917728).

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

51888128 is an frugal number, since it uses more digits than its factorization.

51888128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195 (or 3169 counting only the distinct ones).

The product of its digits is 40960, while the sum is 41.

The square root of 51888128 is about 7203.3414468565. The cubic root of 51888128 is about 372.9832545964.

The spelling of 51888128 in words is "fifty-one million, eight hundred eighty-eight thousand, one hundred twenty-eight".