71885056 has 36 divisors (see below), whose sum is σ = 151051600. Its totient is φ = 34048512.

The previous prime is 71885041. The next prime is 71885057. The reversal of 71885056 is 65058817.

It is a super-2 number, since 2×71885056² = 10334922552246272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71885057) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2526 + ... + 12253.

Almost surely, 2^71885056 is an apocalyptic number.

71885056 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71885056 is an abundant number, since it is smaller than the sum of its proper divisors (79166544).

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

71885056 is a wasteful number, since it uses less digits than its factorization.

71885056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14814 (or 14800 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 71885056 is about 8478.5055286884. The cubic root of 71885056 is about 415.7952641466.

The spelling of 71885056 in words is "seventy-one million, eight hundred eighty-five thousand, fifty-six".