71056005 has 16 divisors (see below), whose sum is σ = 120377664. Its totient is φ = 35667200.

The previous prime is 71055989. The next prime is 71056049. The reversal of 71056005 is 50065017.

It is not a de Polignac number, because 71056005 - 2⁴ = 71055989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139071 + ... + 139580.

It is an arithmetic number, because the mean of its divisors is an integer number (7523604).

Almost surely, 2^71056005 is an apocalyptic number.

It is an amenable number.

71056005 is a deficient number, since it is larger than the sum of its proper divisors (49321659).

71056005 is a wasteful number, since it uses less digits than its factorization.

71056005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278676.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 71056005 is about 8429.4724034189. The cubic root of 71056005 is about 414.1906226177.

The spelling of 71056005 in words is "seventy-one million, fifty-six thousand, five".