71868055 has 12 divisors (see below), whose sum is σ = 100322280. Its totient is φ = 49280784.

The previous prime is 71868047. The next prime is 71868059. The reversal of 71868055 is 55086817.

It is not a de Polignac number, because 71868055 - 2³ = 71868047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71867999 and 71868017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71868059) 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 11 ways as a sum of consecutive naturals, for example, 146425 + ... + 146914.

It is an arithmetic number, because the mean of its divisors is an integer number (8360190).

Almost surely, 2^71868055 is an apocalyptic number.

71868055 is a deficient number, since it is larger than the sum of its proper divisors (28454225).

71868055 is a wasteful number, since it uses less digits than its factorization.

71868055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293358 (or 293351 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 71868055 is about 8477.5028752575. The cubic root of 71868055 is about 415.7624826802.

The spelling of 71868055 in words is "seventy-one million, eight hundred sixty-eight thousand, fifty-five".