6545263531 has 2 divisors, whose sum is σ = 6545263532. Its totient is φ = 6545263530.

The previous prime is 6545263513. The next prime is 6545263541. The reversal of 6545263531 is 1353625456.

Together with previous prime (6545263513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6545263531 - 2⁵ = 6545263499 is a prime.

It is a super-2 number, since 2×6545263531² = 85680949380477175922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6545263511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272631765 + 3272631766.

It is an arithmetic number, because the mean of its divisors is an integer number (3272631766).

Almost surely, 2^6545263531 is an apocalyptic number.

6545263531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545263531 is an equidigital number, since it uses as much as digits as its factorization.

6545263531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 40.

The square root of 6545263531 is about 80902.8029860523. The cubic root of 6545263531 is about 1870.5775267298.

Adding to 6545263531 its reverse (1353625456), we get a palindrome (7898888987).

The spelling of 6545263531 in words is "six billion, five hundred forty-five million, two hundred sixty-three thousand, five hundred thirty-one".