71445056 has 14 divisors (see below), whose sum is σ = 141773910. Its totient is φ = 35722496.

The previous prime is 71445043. The next prime is 71445071. The reversal of 71445056 is 65054417.

It can be written as a sum of positive squares in only one way, i.e., 58369600 + 13075456 = 7640^2 + 3616^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558101 + ... + 558228.

Almost surely, 2^71445056 is an apocalyptic number.

It is an amenable number.

71445056 is a deficient number, since it is larger than the sum of its proper divisors (70328854).

71445056 is a wasteful number, since it uses less digits than its factorization.

71445056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116341 (or 1116331 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 71445056 is about 8452.5177314218. The cubic root of 71445056 is about 414.9451826758.

The spelling of 71445056 in words is "seventy-one million, four hundred forty-five thousand, fifty-six".