6520225316131 has 4 divisors (see below), whose sum is σ = 6520512459600. Its totient is φ = 6519938172664.

The previous prime is 6520225316123. The next prime is 6520225316161. The reversal of 6520225316131 is 1316135220256.

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

It is a cyclic number.

It is not a de Polignac number, because 6520225316131 - 2³ = 6520225316123 is a prime.

It is a super-2 number, since 2×6520225316131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6520225316161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143537671 + ... + 143583088.

It is an arithmetic number, because the mean of its divisors is an integer number (1630128114900).

Almost surely, 2^{6520225316131} is an apocalyptic number.

6520225316131 is a deficient number, since it is larger than the sum of its proper divisors (287143469).

6520225316131 is a wasteful number, since it uses less digits than its factorization.

6520225316131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287143468.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 6520225316131 in words is "six trillion, five hundred twenty billion, two hundred twenty-five million, three hundred sixteen thousand, one hundred thirty-one".