71525203460 has 12 divisors (see below), whose sum is σ = 150202927308. Its totient is φ = 28610081376.

The previous prime is 71525203439. The next prime is 71525203489. The reversal of 71525203460 is 6430252517.

It can be written as a sum of positive squares in 2 ways, for example, as 44909238724 + 26615964736 = 211918^2 + 163144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71525203460.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1788130067 + ... + 1788130106.

It is an arithmetic number, because the mean of its divisors is an integer number (12516910609).

Almost surely, 2^71525203460 is an apocalyptic number.

It is an amenable number.

71525203460 is an abundant number, since it is smaller than the sum of its proper divisors (78677723848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71525203460 is a wasteful number, since it uses less digits than its factorization.

71525203460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576260182 (or 3576260180 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 71525203460 its reverse (6430252517), we get a palindrome (77955455977).

The spelling of 71525203460 in words is "seventy-one billion, five hundred twenty-five million, two hundred three thousand, four hundred sixty".