52581448 has 8 divisors (see below), whose sum is σ = 98590230. Its totient is φ = 26290720.

The previous prime is 52581443. The next prime is 52581457. The reversal of 52581448 is 84418525.

It can be written as a sum of positive squares in only one way, i.e., 46539684 + 6041764 = 6822^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (52581443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286333 + ... + 3286348.

Almost surely, 2^52581448 is an apocalyptic number.

It is an amenable number.

52581448 is a deficient number, since it is larger than the sum of its proper divisors (46008782).

52581448 is a wasteful number, since it uses less digits than its factorization.

52581448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572687 (or 6572683 counting only the distinct ones).

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

The square root of 52581448 is about 7251.3066408751. The cubic root of 52581448 is about 374.6371554004.

The spelling of 52581448 in words is "fifty-two million, five hundred eighty-one thousand, four hundred forty-eight".