51316328 has 48 divisors (see below), whose sum is σ = 113048100. Its totient is φ = 21772800.

The previous prime is 51316271. The next prime is 51316337. The reversal of 51316328 is 82361315.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 3678724 = 6902^2 + 1918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51316328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42128 + ... + 43328.

Almost surely, 2^51316328 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 51316328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56524050).

51316328 is an abundant number, since it is smaller than the sum of its proper divisors (61731772).

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

51316328 is a wasteful number, since it uses less digits than its factorization.

51316328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1319 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 51316328 is about 7163.5415822064. The cubic root of 51316328 is about 371.6081162390.

The spelling of 51316328 in words is "fifty-one million, three hundred sixteen thousand, three hundred twenty-eight".