71055065 has 16 divisors (see below), whose sum is σ = 86576256. Its totient is φ = 55977600.

The previous prime is 71055043. The next prime is 71055067. The reversal of 71055065 is 56055017.

It is a de Polignac number, because none of the positive numbers 2^k-71055065 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71055067) 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, 144470 + ... + 144960.

It is an arithmetic number, because the mean of its divisors is an integer number (5411016).

Almost surely, 2^71055065 is an apocalyptic number.

It is an amenable number.

71055065 is a deficient number, since it is larger than the sum of its proper divisors (15521191).

71055065 is a wasteful number, since it uses less digits than its factorization.

71055065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 71055065 is about 8429.4166464827. The cubic root of 71055065 is about 414.1887961668.

The spelling of 71055065 in words is "seventy-one million, fifty-five thousand, sixty-five".