6523521271 has 16 divisors (see below), whose sum is σ = 6863836320. Its totient is φ = 6193998720.

The previous prime is 6523521269. The next prime is 6523521283. The reversal of 6523521271 is 1721253256.

It is a cyclic number.

It is not a de Polignac number, because 6523521271 - 2¹ = 6523521269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6523521241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235281 + ... + 261541.

It is an arithmetic number, because the mean of its divisors is an integer number (428989770).

Almost surely, 2^6523521271 is an apocalyptic number.

6523521271 is a deficient number, since it is larger than the sum of its proper divisors (340315049).

6523521271 is a wasteful number, since it uses less digits than its factorization.

6523521271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26466.

The product of its digits is 25200, while the sum is 34.

The square root of 6523521271 is about 80768.3184856538. The cubic root of 6523521271 is about 1868.5039815044.

The spelling of 6523521271 in words is "six billion, five hundred twenty-three million, five hundred twenty-one thousand, two hundred seventy-one".