51528448 has 72 divisors (see below), whose sum is σ = 109362176. Its totient is φ = 24192000.

The previous prime is 51528413. The next prime is 51528467. The reversal of 51528448 is 84482515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341173 + ... + 341323.

Almost surely, 2^51528448 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 51528448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54681088).

51528448 is an abundant number, since it is smaller than the sum of its proper divisors (57833728).

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

51528448 is a wasteful number, since it uses less digits than its factorization.

51528448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 227 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 51528448 is about 7178.3318396407. The cubic root of 51528448 is about 372.1194359623.

The spelling of 51528448 in words is "fifty-one million, five hundred twenty-eight thousand, four hundred forty-eight".