6523530065 has 8 divisors (see below), whose sum is σ = 8430408168. Its totient is φ = 4817376000.

The previous prime is 6523530023. The next prime is 6523530067. The reversal of 6523530065 is 5600353256.

It can be written as a sum of positive squares in 4 ways, for example, as 45050944 + 6478479121 = 6712^2 + 80489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6523530065 - 2¹⁴ = 6523513681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6523530067) 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, 50180936 + ... + 50181065.

It is an arithmetic number, because the mean of its divisors is an integer number (1053801021).

Almost surely, 2^6523530065 is an apocalyptic number.

6523530065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6523530065 is a deficient number, since it is larger than the sum of its proper divisors (1906878103).

6523530065 is a wasteful number, since it uses less digits than its factorization.

6523530065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100362019.

The product of its (nonzero) digits is 81000, while the sum is 35.

The square root of 6523530065 is about 80768.3729252979. The cubic root of 6523530065 is about 1868.5048211131.

The spelling of 6523530065 in words is "six billion, five hundred twenty-three million, five hundred thirty thousand, sixty-five".