6530444023 has 4 divisors (see below), whose sum is σ = 6540324328. Its totient is φ = 6520563720.

The previous prime is 6530443987. The next prime is 6530444029. The reversal of 6530444023 is 3204440356.

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 6530444023 - 2¹⁷ = 6530312951 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 (6530444029) 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, 4939161 + ... + 4940482.

It is an arithmetic number, because the mean of its divisors is an integer number (1635081082).

Almost surely, 2^6530444023 is an apocalyptic number.

6530444023 is a deficient number, since it is larger than the sum of its proper divisors (9880305).

6530444023 is an equidigital number, since it uses as much as digits as its factorization.

6530444023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9880304.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 6530444023 is about 80811.1627375822. The cubic root of 6530444023 is about 1869.1646991460.

Adding to 6530444023 its reverse (3204440356), we get a palindrome (9734884379).

The spelling of 6530444023 in words is "six billion, five hundred thirty million, four hundred forty-four thousand, twenty-three".