6520047623 has 2 divisors, whose sum is σ = 6520047624. Its totient is φ = 6520047622.

The previous prime is 6520047577. The next prime is 6520047637. The reversal of 6520047623 is 3267400256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6520047623 - 2¹² = 6520043527 is a prime.

It is a super-2 number, since 2×6520047623² = 85022042012375900258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6520047323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260023811 + 3260023812.

It is an arithmetic number, because the mean of its divisors is an integer number (3260023812).

Almost surely, 2^6520047623 is an apocalyptic number.

6520047623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6520047623 is an equidigital number, since it uses as much as digits as its factorization.

6520047623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 6520047623 is about 80746.8118441837. The cubic root of 6520047623 is about 1868.1722752977.

Adding to 6520047623 its reverse (3267400256), we get a palindrome (9787447879).

The spelling of 6520047623 in words is "six billion, five hundred twenty million, forty-seven thousand, six hundred twenty-three".