65531472563 has 2 divisors, whose sum is σ = 65531472564. Its totient is φ = 65531472562.

The previous prime is 65531472529. The next prime is 65531472607. The reversal of 65531472563 is 36527413556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65531472563 - 2¹⁰ = 65531471539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (65531472263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32765736281 + 32765736282.

It is an arithmetic number, because the mean of its divisors is an integer number (32765736282).

Almost surely, 2^65531472563 is an apocalyptic number.

65531472563 is a deficient number, since it is larger than the sum of its proper divisors (1).

65531472563 is an equidigital number, since it uses as much as digits as its factorization.

65531472563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 47.

The spelling of 65531472563 in words is "sixty-five billion, five hundred thirty-one million, four hundred seventy-two thousand, five hundred sixty-three".