71255532 has 48 divisors (see below), whose sum is σ = 170553600. Its totient is φ = 23145408.

The previous prime is 71255497. The next prime is 71255557. The reversal of 71255532 is 23555217.

It is a self number, because there is not a number n which added to its sum of digits gives 71255532.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126283 + ... + 126845.

It is an arithmetic number, because the mean of its divisors is an integer number (3553200).

Almost surely, 2^71255532 is an apocalyptic number.

It is an amenable number.

71255532 is an abundant number, since it is smaller than the sum of its proper divisors (99298068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71255532 is a wasteful number, since it uses less digits than its factorization.

71255532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 820 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 71255532 is about 8441.2991891059. The cubic root of 71255532 is about 414.5779461053.

The spelling of 71255532 in words is "seventy-one million, two hundred fifty-five thousand, five hundred thirty-two".