65729563 has 2 divisors, whose sum is σ = 65729564. Its totient is φ = 65729562.

The previous prime is 65729557. The next prime is 65729581. The reversal of 65729563 is 36592756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65729563 - 2²⁵ = 32175131 is a prime.

It is not a weakly prime, because it can be changed into another prime (65729663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32864781 + 32864782.

It is an arithmetic number, because the mean of its divisors is an integer number (32864782).

Almost surely, 2^65729563 is an apocalyptic number.

65729563 is a deficient number, since it is larger than the sum of its proper divisors (1).

65729563 is an equidigital number, since it uses as much as digits as its factorization.

65729563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 43.

The square root of 65729563 is about 8107.3770727653. The cubic root of 65729563 is about 403.5712763217.

The spelling of 65729563 in words is "sixty-five million, seven hundred twenty-nine thousand, five hundred sixty-three".