6505143232 has 56 divisors (see below), whose sum is σ = 14838188256. Its totient is φ = 2771770368.

The previous prime is 6505143209. The next prime is 6505143247. The reversal of 6505143232 is 2323415056.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 6505143194 and 6505143203.

It is a congruent number.

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, 35538 + ... + 119470.

Almost surely, 2^6505143232 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 6505143232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7419094128).

6505143232 is an abundant number, since it is smaller than the sum of its proper divisors (8333045024).

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

6505143232 is a wasteful number, since it uses less digits than its factorization.

6505143232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84125 (or 84115 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 6505143232 is about 80654.4681465323. The cubic root of 6505143232 is about 1866.7476837852.

Adding to 6505143232 its reverse (2323415056), we get a palindrome (8828558288).

The spelling of 6505143232 in words is "six billion, five hundred five million, one hundred forty-three thousand, two hundred thirty-two".