6531255064 has 32 divisors (see below), whose sum is σ = 12556056240. Its totient is φ = 3183116800.

The previous prime is 6531255061. The next prime is 6531255163. The reversal of 6531255064 is 4605521356.

It is a super-2 number, since 2×6531255064² = 85314585422051288192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531255061) 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, 382959 + ... + 399649.

Almost surely, 2^6531255064 is an apocalyptic number.

It is an amenable number.

6531255064 is a deficient number, since it is larger than the sum of its proper divisors (6024801176).

6531255064 is a wasteful number, since it uses less digits than its factorization.

6531255064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17931 (or 17927 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 6531255064 is about 80816.1807065887. The cubic root of 6531255064 is about 1869.2420755311.

The spelling of 6531255064 in words is "six billion, five hundred thirty-one million, two hundred fifty-five thousand, sixty-four".