65855271 has 16 divisors (see below), whose sum is σ = 90107136. Its totient is φ = 42768576.

The previous prime is 65855261. The next prime is 65855287. The reversal of 65855271 is 17255856.

It is not a de Polignac number, because 65855271 - 2¹⁴ = 65838887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65855261) 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, 16366 + ... + 19988.

It is an arithmetic number, because the mean of its divisors is an integer number (5631696).

Almost surely, 2^65855271 is an apocalyptic number.

65855271 is a deficient number, since it is larger than the sum of its proper divisors (24251865).

65855271 is a wasteful number, since it uses less digits than its factorization.

65855271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782.

The product of its digits is 84000, while the sum is 39.

The square root of 65855271 is about 8115.1260618674. The cubic root of 65855271 is about 403.8283896013.

The spelling of 65855271 in words is "sixty-five million, eight hundred fifty-five thousand, two hundred seventy-one".