6540056223 has 16 divisors (see below), whose sum is σ = 8758984416. Its totient is φ = 4340615040.

The previous prime is 6540056221. The next prime is 6540056227. The reversal of 6540056223 is 3226500456.

It is not a de Polignac number, because 6540056223 - 2¹ = 6540056221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540056221) 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, 978513 + ... + 985173.

It is an arithmetic number, because the mean of its divisors is an integer number (547436526).

Almost surely, 2^6540056223 is an apocalyptic number.

6540056223 is a deficient number, since it is larger than the sum of its proper divisors (2218928193).

6540056223 is a wasteful number, since it uses less digits than its factorization.

6540056223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 6540056223 is about 80870.6140881841. The cubic root of 6540056223 is about 1870.0813278326.

Adding to 6540056223 its reverse (3226500456), we get a palindrome (9766556679).

The spelling of 6540056223 in words is "six billion, five hundred forty million, fifty-six thousand, two hundred twenty-three".