71525361 has 16 divisors (see below), whose sum is σ = 98017920. Its totient is φ = 46366080.

The previous prime is 71525359. The next prime is 71525393. The reversal of 71525361 is 16352517.

It is not a de Polignac number, because 71525361 - 2¹ = 71525359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71525351) 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 15 ways as a sum of consecutive naturals, for example, 45100 + ... + 46658.

It is an arithmetic number, because the mean of its divisors is an integer number (6126120).

Almost surely, 2^71525361 is an apocalyptic number.

It is an amenable number.

71525361 is a deficient number, since it is larger than the sum of its proper divisors (26492559).

71525361 is a wasteful number, since it uses less digits than its factorization.

71525361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its digits is 6300, while the sum is 30.

The square root of 71525361 is about 8457.2667570557. The cubic root of 71525361 is about 415.1005920571.

Adding to 71525361 its reverse (16352517), we get a palindrome (87877878).

The spelling of 71525361 in words is "seventy-one million, five hundred twenty-five thousand, three hundred sixty-one".