6505212563 has 2 divisors, whose sum is σ = 6505212564. Its totient is φ = 6505212562.

The previous prime is 6505212551. The next prime is 6505212583. The reversal of 6505212563 is 3652125056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6505212563 - 2⁶ = 6505212499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (6505212523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252606281 + 3252606282.

It is an arithmetic number, because the mean of its divisors is an integer number (3252606282).

Almost surely, 2^6505212563 is an apocalyptic number.

6505212563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505212563 is an equidigital number, since it uses as much as digits as its factorization.

6505212563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 6505212563 is about 80654.8979479858. The cubic root of 6505212563 is about 1866.7543156158.

The spelling of 6505212563 in words is "six billion, five hundred five million, two hundred twelve thousand, five hundred sixty-three".