71165055 has 48 divisors (see below), whose sum is σ = 125435520. Its totient is φ = 34429824.

The previous prime is 71165047. The next prime is 71165063. The reversal of 71165055 is 55056117.

It is an interprime number because it is at equal distance from previous prime (71165047) and next prime (71165063).

It is not a de Polignac number, because 71165055 - 2³ = 71165047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169636 + ... + 170054.

It is an arithmetic number, because the mean of its divisors is an integer number (2613240).

Almost surely, 2^71165055 is an apocalyptic number.

71165055 is a deficient number, since it is larger than the sum of its proper divisors (54270465).

71165055 is a wasteful number, since it uses less digits than its factorization.

71165055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 71165055 is about 8435.9382999166. The cubic root of 71165055 is about 414.4024011100.

The spelling of 71165055 in words is "seventy-one million, one hundred sixty-five thousand, fifty-five".