71330425 has 6 divisors (see below), whose sum is σ = 88449758. Its totient is φ = 57064320.

The previous prime is 71330423. The next prime is 71330513. The reversal of 71330425 is 52403317.

It can be written as a sum of positive squares in 3 ways, for example, as 147456 + 71182969 = 384^2 + 8437^2 .

It is not a de Polignac number, because 71330425 - 2¹ = 71330423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2853217 = 71330425 / (7 + 1 + 3 + 3 + 0 + 4 + 2 + 5).

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 71330425.

It is not an unprimeable number, because it can be changed into a prime (71330423) 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 5 ways as a sum of consecutive naturals, for example, 1426584 + ... + 1426633.

Almost surely, 2^71330425 is an apocalyptic number.

It is an amenable number.

71330425 is a deficient number, since it is larger than the sum of its proper divisors (17119333).

71330425 is a wasteful number, since it uses less digits than its factorization.

71330425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853227 (or 2853222 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 71330425 is about 8445.7341303169. The cubic root of 71330425 is about 414.7231423851.

The spelling of 71330425 in words is "seventy-one million, three hundred thirty thousand, four hundred twenty-five".