6572520440 has 32 divisors (see below), whose sum is σ = 15008896080. Its totient is φ = 2589768192.

The previous prime is 6572520431. The next prime is 6572520443. The reversal of 6572520440 is 440252756.

It is a self number, because there is not a number n which added to its sum of digits gives 6572520440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6572520443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223537 + ... + 1228896.

Almost surely, 2^6572520440 is an apocalyptic number.

It is an amenable number.

6572520440 is an abundant number, since it is smaller than the sum of its proper divisors (8436375640).

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

6572520440 is a wasteful number, since it uses less digits than its factorization.

6572520440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452511 (or 2452507 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 6572520440 is about 81071.0826373991. The cubic root of 6572520440 is about 1873.1705239083.

The spelling of 6572520440 in words is "six billion, five hundred seventy-two million, five hundred twenty thousand, four hundred forty".