71064525 has 48 divisors (see below), whose sum is σ = 135102464. Its totient is φ = 32287680.

The previous prime is 71064491. The next prime is 71064547. The reversal of 71064525 is 52546017.

It is not a de Polignac number, because 71064525 - 2⁸ = 71064269 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71064492 and 71064501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116772 + ... + 117378.

Almost surely, 2^71064525 is an apocalyptic number.

71064525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71064525 is a deficient number, since it is larger than the sum of its proper divisors (64037939).

71064525 is a wasteful number, since it uses less digits than its factorization.

71064525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 71064525 is about 8429.9777579778. The cubic root of 71064525 is about 414.2071765227.

The spelling of 71064525 in words is "seventy-one million, sixty-four thousand, five hundred twenty-five".