71047552 has 32 divisors (see below), whose sum is σ = 147700080. Its totient is φ = 33977856.

The previous prime is 71047549. The next prime is 71047579. The reversal of 71047552 is 25574017.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9123 + ... + 15010.

Almost surely, 2^71047552 is an apocalyptic number.

It is an amenable number.

71047552 is an abundant number, since it is smaller than the sum of its proper divisors (76652528).

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

71047552 is a wasteful number, since it uses less digits than its factorization.

71047552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24170 (or 24158 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 71047552 is about 8428.9709929504. The cubic root of 71047552 is about 414.1741975824.

The spelling of 71047552 in words is "seventy-one million, forty-seven thousand, five hundred fifty-two".