51934728 has 32 divisors (see below), whose sum is σ = 137475360. Its totient is φ = 16293120.

The previous prime is 51934723. The next prime is 51934739. The reversal of 51934728 is 82743915.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51934721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63238 + ... + 64053.

It is an arithmetic number, because the mean of its divisors is an integer number (4296105).

Almost surely, 2^51934728 is an apocalyptic number.

It is an amenable number.

51934728 is an abundant number, since it is smaller than the sum of its proper divisors (85540632).

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

51934728 is a wasteful number, since it uses less digits than its factorization.

51934728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127317 (or 127313 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 51934728 is about 7206.5753309044. The cubic root of 51934728 is about 373.0948781971.

The spelling of 51934728 in words is "fifty-one million, nine hundred thirty-four thousand, seven hundred twenty-eight".