71255655 has 12 divisors (see below), whose sum is σ = 123509880. Its totient is φ = 38002992.

The previous prime is 71255647. The next prime is 71255669. The reversal of 71255655 is 55655217.

It is a happy number.

71255655 is a `hidden beast` number, since 71 + 25 + 565 + 5 = 666.

It is not a de Polignac number, because 71255655 - 2³ = 71255647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 791685 + ... + 791774.

It is an arithmetic number, because the mean of its divisors is an integer number (10292490).

Almost surely, 2^71255655 is an apocalyptic number.

71255655 is a deficient number, since it is larger than the sum of its proper divisors (52254225).

71255655 is a wasteful number, since it uses less digits than its factorization.

71255655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583470 (or 1583467 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 71255655 is about 8441.3064747111. The cubic root of 71255655 is about 414.5781846508.

The spelling of 71255655 in words is "seventy-one million, two hundred fifty-five thousand, six hundred fifty-five".