6525391652 has 24 divisors (see below), whose sum is σ = 12387632376. Its totient is φ = 2989732608.

The previous prime is 6525391637. The next prime is 6525391657. The reversal of 6525391652 is 2561935256.

It can be written as a sum of positive squares in 4 ways, for example, as 909987556 + 5615404096 = 30166^2 + 74936^2 .

It is not an unprimeable number, because it can be changed into a prime (6525391657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450863 + ... + 465110.

It is an arithmetic number, because the mean of its divisors is an integer number (516151349).

Almost surely, 2^6525391652 is an apocalyptic number.

It is an amenable number.

6525391652 is a deficient number, since it is larger than the sum of its proper divisors (5862240724).

6525391652 is a wasteful number, since it uses less digits than its factorization.

6525391652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916127 (or 916125 counting only the distinct ones).

The product of its digits is 486000, while the sum is 44.

The square root of 6525391652 is about 80779.8963356601. The cubic root of 6525391652 is about 1868.6825394871.

The spelling of 6525391652 in words is "six billion, five hundred twenty-five million, three hundred ninety-one thousand, six hundred fifty-two".