71066125 has 32 divisors (see below), whose sum is σ = 96681312. Its totient is φ = 51840000.

The previous prime is 71066119. The next prime is 71066129. The reversal of 71066125 is 52166017.

It can be written as a sum of positive squares in 16 ways, for example, as 57714409 + 13351716 = 7597^2 + 3654^2 .

It is not a de Polignac number, because 71066125 - 2³ = 71066117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71066093 and 71066102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71066129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163909 + ... + 164341.

It is an arithmetic number, because the mean of its divisors is an integer number (3021291).

Almost surely, 2^71066125 is an apocalyptic number.

It is an amenable number.

71066125 is a deficient number, since it is larger than the sum of its proper divisors (25615187).

71066125 is a wasteful number, since it uses less digits than its factorization.

71066125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 71066125 is about 8430.0726568636. The cubic root of 71066125 is about 414.2102850897.

It can be divided in two parts, 7106 and 6125, that added together give a palindrome (13231).

The spelling of 71066125 in words is "seventy-one million, sixty-six thousand, one hundred twenty-five".