6525363665 has 4 divisors (see below), whose sum is σ = 7830436404. Its totient is φ = 5220290928.

The previous prime is 6525363659. The next prime is 6525363671. The reversal of 6525363665 is 5663635256.

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

It is an interprime number because it is at equal distance from previous prime (6525363659) and next prime (6525363671).

It can be written as a sum of positive squares in 2 ways, for example, as 4838454481 + 1686909184 = 69559^2 + 41072^2 .

It is a cyclic number.

It is not a de Polignac number, because 6525363665 - 2¹² = 6525359569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652536362 + ... + 652536371.

It is an arithmetic number, because the mean of its divisors is an integer number (1957609101).

Almost surely, 2^6525363665 is an apocalyptic number.

It is an amenable number.

6525363665 is a deficient number, since it is larger than the sum of its proper divisors (1305072739).

6525363665 is a wasteful number, since it uses less digits than its factorization.

6525363665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305072738.

The product of its digits is 2916000, while the sum is 47.

The square root of 6525363665 is about 80779.7231054923. The cubic root of 6525363665 is about 1868.6798679288.

The spelling of 6525363665 in words is "six billion, five hundred twenty-five million, three hundred sixty-three thousand, six hundred sixty-five".