52447648 has 48 divisors (see below), whose sum is σ = 115716384. Its totient is φ = 23189760.

The previous prime is 52447607. The next prime is 52447673. The reversal of 52447648 is 84674425.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52447648.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11011 + ... + 15037.

It is an arithmetic number, because the mean of its divisors is an integer number (2410758).

Almost surely, 2^52447648 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 52447648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57858192).

52447648 is an abundant number, since it is smaller than the sum of its proper divisors (63268736).

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

52447648 is a wasteful number, since it uses less digits than its factorization.

52447648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 4077 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 52447648 is about 7242.0748408174. The cubic root of 52447648 is about 374.3191152857.

The spelling of 52447648 in words is "fifty-two million, four hundred forty-seven thousand, six hundred forty-eight".