65563089 has 16 divisors (see below), whose sum is σ = 89751552. Its totient is φ = 42548688.

The previous prime is 65563061. The next prime is 65563097. The reversal of 65563089 is 98036556.

It is not a de Polignac number, because 65563089 - 2⁹ = 65562577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65563089.

It is not an unprimeable number, because it can be changed into a prime (65563009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48744 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (5609472).

Almost surely, 2^65563089 is an apocalyptic number.

It is an amenable number.

65563089 is a deficient number, since it is larger than the sum of its proper divisors (24188463).

65563089 is a wasteful number, since it uses less digits than its factorization.

65563089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 65563089 is about 8097.1037414621. The cubic root of 65563089 is about 403.2302784467.

The spelling of 65563089 in words is "sixty-five million, five hundred sixty-three thousand, eighty-nine".