71655056 has 80 divisors (see below), whose sum is σ = 159364800. Its totient is φ = 30912000.

The previous prime is 71655049. The next prime is 71655109. The reversal of 71655056 is 65055617.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515435 + ... + 515573.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^71655056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71655056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79682400).

71655056 is an abundant number, since it is smaller than the sum of its proper divisors (87709744).

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

71655056 is a wasteful number, since it uses less digits than its factorization.

71655056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 71655056 is about 8464.9309506930. The cubic root of 71655056 is about 415.3513374487.

It can be divided in two parts, 7165 and 5056, that added together give a palindrome (12221).

The spelling of 71655056 in words is "seventy-one million, six hundred fifty-five thousand, fifty-six".