65656241 has 16 divisors (see below), whose sum is σ = 78534144. Its totient is φ = 53711424.

The previous prime is 65656219. The next prime is 65656247. The reversal of 65656241 is 14265656.

It is a cyclic number.

It is not a de Polignac number, because 65656241 - 2¹⁴ = 65639857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65656247) 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, 11336 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (4908384).

Almost surely, 2^65656241 is an apocalyptic number.

It is an amenable number.

65656241 is a deficient number, since it is larger than the sum of its proper divisors (12877903).

65656241 is a wasteful number, since it uses less digits than its factorization.

65656241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880.

The product of its digits is 43200, while the sum is 35.

The square root of 65656241 is about 8102.8538799611. The cubic root of 65656241 is about 403.4211578591.

The spelling of 65656241 in words is "sixty-five million, six hundred fifty-six thousand, two hundred forty-one".