6520056711 has 8 divisors (see below), whose sum is σ = 9935324544. Its totient is φ = 3725746680.

The previous prime is 6520056707. The next prime is 6520056757. The reversal of 6520056711 is 1176500256.

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

It is not a de Polignac number, because 6520056711 - 2² = 6520056707 is a prime.

It is a super-2 number, since 2×6520056711² = 85022279029312275042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520056791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155239425 + ... + 155239466.

It is an arithmetic number, because the mean of its divisors is an integer number (1241915568).

Almost surely, 2^6520056711 is an apocalyptic number.

6520056711 is a deficient number, since it is larger than the sum of its proper divisors (3415267833).

6520056711 is a wasteful number, since it uses less digits than its factorization.

6520056711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310478901.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 6520056711 is about 80746.8681188317. The cubic root of 6520056711 is about 1868.1731432843.

Adding to 6520056711 its reverse (1176500256), we get a palindrome (7696556967).

The spelling of 6520056711 in words is "six billion, five hundred twenty million, fifty-six thousand, seven hundred eleven".