65135563 has 8 divisors (see below), whose sum is σ = 68214528. Its totient is φ = 62077224.

The previous prime is 65135549. The next prime is 65135599. The reversal of 65135563 is 36553156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65135563 - 2⁹ = 65135051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65135533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506 + ... + 11512.

It is an arithmetic number, because the mean of its divisors is an integer number (8526816).

Almost surely, 2^65135563 is an apocalyptic number.

65135563 is a deficient number, since it is larger than the sum of its proper divisors (3078965).

65135563 is a wasteful number, since it uses less digits than its factorization.

65135563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313.

The product of its digits is 40500, while the sum is 34.

The square root of 65135563 is about 8070.6606297130. The cubic root of 65135563 is about 402.3519005565.

The spelling of 65135563 in words is "sixty-five million, one hundred thirty-five thousand, five hundred sixty-three".