71575056 has 80 divisors (see below), whose sum is σ = 234806400. Its totient is φ = 20449152.

The previous prime is 71575051. The next prime is 71575061. The reversal of 71575056 is 65057517.

It is an interprime number because it is at equal distance from previous prime (71575051) and next prime (71575061).

It is a super-3 number, since 3×71575056³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71575056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71575051) 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 15 ways as a sum of consecutive naturals, for example, 8811 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (2935080).

Almost surely, 2^71575056 is an apocalyptic number.

It is an amenable number.

71575056 is an abundant number, since it is smaller than the sum of its proper divisors (163231344).

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

71575056 is a wasteful number, since it uses less digits than its factorization.

71575056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23693 (or 23681 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 71575056 is about 8460.2042528535. The cubic root of 71575056 is about 415.1967055103.

It can be divided in two parts, 715750 and 56, that added together give a triangular number (715806 = T₁₁₉₆).

The spelling of 71575056 in words is "seventy-one million, five hundred seventy-five thousand, fifty-six".