6531525653 has 4 divisors (see below), whose sum is σ = 6532560108. Its totient is φ = 6530491200.

The previous prime is 6531525643. The next prime is 6531525697. The reversal of 6531525653 is 3565251356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1263233764 + 5268291889 = 35542^2 + 72583^2 .

It is a cyclic number.

It is not a de Polignac number, because 6531525653 - 2⁶ = 6531525589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6531525653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531525643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507698 + ... + 520403.

It is an arithmetic number, because the mean of its divisors is an integer number (1633140027).

Almost surely, 2^6531525653 is an apocalyptic number.

It is an amenable number.

6531525653 is a deficient number, since it is larger than the sum of its proper divisors (1034455).

6531525653 is a wasteful number, since it uses less digits than its factorization.

6531525653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034454.

The product of its digits is 405000, while the sum is 41.

The square root of 6531525653 is about 80817.8547908815. The cubic root of 6531525653 is about 1869.2678893220.

The spelling of 6531525653 in words is "six billion, five hundred thirty-one million, five hundred twenty-five thousand, six hundred fifty-three".