71115325 has 12 divisors (see below), whose sum is σ = 89630548. Its totient is φ = 55958400.

The previous prime is 71115323. The next prime is 71115349. The reversal of 71115325 is 52351117.

It can be written as a sum of positive squares in 6 ways, for example, as 21031396 + 50083929 = 4586^2 + 7077^2 .

It is not a de Polignac number, because 71115325 - 2¹ = 71115323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71115325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71115323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21792 + ... + 24841.

Almost surely, 2^71115325 is an apocalyptic number.

It is an amenable number.

71115325 is a deficient number, since it is larger than the sum of its proper divisors (18515223).

71115325 is a wasteful number, since it uses less digits than its factorization.

71115325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46704 (or 46699 counting only the distinct ones).

The product of its digits is 1050, while the sum is 25.

The square root of 71115325 is about 8432.9902762899. The cubic root of 71115325 is about 414.3058507567.

The spelling of 71115325 in words is "seventy-one million, one hundred fifteen thousand, three hundred twenty-five".