51929328 has 60 divisors (see below), whose sum is σ = 147471464. Its totient is φ = 15734400.

The previous prime is 51929327. The next prime is 51929351. The reversal of 51929328 is 82392915.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51929321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1338 + ... + 10278.

Almost surely, 2^51929328 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 51929328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73735732).

51929328 is an abundant number, since it is smaller than the sum of its proper divisors (95542136).

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

51929328 is a wasteful number, since it uses less digits than its factorization.

51929328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974 (or 8957 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 51929328 is about 7206.2006633177. The cubic root of 51929328 is about 373.0819466947.

The spelling of 51929328 in words is "fifty-one million, nine hundred twenty-nine thousand, three hundred twenty-eight".