71006256 has 60 divisors (see below), whose sum is σ = 204104992. Its totient is φ = 23027328.

The previous prime is 71006191. The next prime is 71006261. The reversal of 71006256 is 65260017.

71006256 = T₁₆₃ + T₁₆₄ + ... + T₇₅₄.

It is a super-2 number, since 2×71006256² = 10083776782275072, which contains 22 as substring.

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, 1336 + ... + 11991.

Almost surely, 2^71006256 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 71006256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102052496).

71006256 is an abundant number, since it is smaller than the sum of its proper divisors (133098736).

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

71006256 is a wasteful number, since it uses less digits than its factorization.

71006256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 13369 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 71006256 is about 8426.5209903020. The cubic root of 71006256 is about 414.0939365362.

The spelling of 71006256 in words is "seventy-one million, six thousand, two hundred fifty-six".