65094561 has 24 divisors (see below), whose sum is σ = 109961280. Its totient is φ = 36330336.

The previous prime is 65094553. The next prime is 65094563. The reversal of 65094561 is 16549056.

65094561 is a `hidden beast` number, since 6 + 5 + 0 + 94 + 561 = 666.

It is not a de Polignac number, because 65094561 - 2³ = 65094553 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65094563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9306 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (4581720).

Almost surely, 2^65094561 is an apocalyptic number.

It is an amenable number.

65094561 is a deficient number, since it is larger than the sum of its proper divisors (44866719).

65094561 is a wasteful number, since it uses less digits than its factorization.

65094561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24085 (or 24082 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 65094561 is about 8068.1200412488. The cubic root of 65094561 is about 402.2674577183.

The spelling of 65094561 in words is "sixty-five million, ninety-four thousand, five hundred sixty-one".