6531448 has 64 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 2428800.

The previous prime is 6531433. The next prime is 6531457. The reversal of 6531448 is 8441356.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13938 + ... + 14398.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^6531448 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 6531448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

6531448 is an abundant number, since it is smaller than the sum of its proper divisors (9435272).

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

6531448 is a wasteful number, since it uses less digits than its factorization.

6531448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 504 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 6531448 is about 2555.6697752253. The cubic root of 6531448 is about 186.9260481413.

It can be divided in two parts, 65 and 31448, that added together give a palindrome (31513).

The spelling of 6531448 in words is "six million, five hundred thirty-one thousand, four hundred forty-eight".