71055705 has 16 divisors (see below), whose sum is σ = 129930624. Its totient is φ = 32482560.

The previous prime is 71055697. The next prime is 71055707. The reversal of 71055705 is 50755017.

It is not a de Polignac number, because 71055705 - 2³ = 71055697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71055707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338256 + ... + 338465.

It is an arithmetic number, because the mean of its divisors is an integer number (8120664).

Almost surely, 2^71055705 is an apocalyptic number.

It is an amenable number.

71055705 is a deficient number, since it is larger than the sum of its proper divisors (58874919).

71055705 is a wasteful number, since it uses less digits than its factorization.

71055705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676736.

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 71055705 is about 8429.4546086921. The cubic root of 71055705 is about 414.1900397096.

The spelling of 71055705 in words is "seventy-one million, fifty-five thousand, seven hundred five".