51957828 has 96 divisors (see below), whose sum is σ = 151468800. Its totient is φ = 15282432.

The previous prime is 51957817. The next prime is 51957833. The reversal of 51957828 is 82875915.

It is a happy number.

51957828 is a `hidden beast` number, since 51 + 9 + 578 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31488 + ... + 33096.

It is an arithmetic number, because the mean of its divisors is an integer number (1577800).

Almost surely, 2^51957828 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 51957828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75734400).

51957828 is an abundant number, since it is smaller than the sum of its proper divisors (99510972).

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

51957828 is a wasteful number, since it uses less digits than its factorization.

51957828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1650 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 51957828 is about 7208.1778557414. The cubic root of 51957828 is about 373.1501861739.

The spelling of 51957828 in words is "fifty-one million, nine hundred fifty-seven thousand, eight hundred twenty-eight".