6463504525 has 24 divisors (see below), whose sum is σ = 8182512000. Its totient is φ = 5063553600.

The previous prime is 6463504501. The next prime is 6463504529. The reversal of 6463504525 is 5254053646.

It is a happy number.

It is not a de Polignac number, because 6463504525 - 2²⁷ = 6329286797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463504529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252256 + ... + 276694.

It is an arithmetic number, because the mean of its divisors is an integer number (340938000).

Almost surely, 2^6463504525 is an apocalyptic number.

It is an amenable number.

6463504525 is a deficient number, since it is larger than the sum of its proper divisors (1719007475).

6463504525 is a wasteful number, since it uses less digits than its factorization.

6463504525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24669 (or 24664 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The square root of 6463504525 is about 80395.9235595935. The cubic root of 6463504525 is about 1862.7562063653.

The spelling of 6463504525 in words is "six billion, four hundred sixty-three million, five hundred four thousand, five hundred twenty-five".