6530455447 has 4 divisors (see below), whose sum is σ = 6613119520. Its totient is φ = 6447791376.

The previous prime is 6530455423. The next prime is 6530455469. The reversal of 6530455447 is 7445540356.

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 6530455447 - 2¹⁹ = 6529931159 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 (6530455417) 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, 41331918 + ... + 41332075.

It is an arithmetic number, because the mean of its divisors is an integer number (1653279880).

Almost surely, 2^6530455447 is an apocalyptic number.

6530455447 is a deficient number, since it is larger than the sum of its proper divisors (82664073).

6530455447 is an equidigital number, since it uses as much as digits as its factorization.

6530455447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82664072.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The square root of 6530455447 is about 80811.2334208555. The cubic root of 6530455447 is about 1869.1657890834.

The spelling of 6530455447 in words is "six billion, five hundred thirty million, four hundred fifty-five thousand, four hundred forty-seven".