71356256 has 12 divisors (see below), whose sum is σ = 140482692. Its totient is φ = 35678112.

The previous prime is 71356253. The next prime is 71356291. The reversal of 71356256 is 65265317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71356253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114910 + ... + 1114973.

It is an arithmetic number, because the mean of its divisors is an integer number (11706891).

Almost surely, 2^71356256 is an apocalyptic number.

It is an amenable number.

71356256 is a deficient number, since it is larger than the sum of its proper divisors (69126436).

71356256 is a wasteful number, since it uses less digits than its factorization.

71356256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229893 (or 2229885 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 71356256 is about 8447.2632254476. The cubic root of 71356256 is about 414.7731977932.

The spelling of 71356256 in words is "seventy-one million, three hundred fifty-six thousand, two hundred fifty-six".