2564206572 has 24 divisors (see below), whose sum is σ = 5985878976. Its totient is φ = 854345488.

The previous prime is 2564206499. The next prime is 2564206637. The reversal of 2564206572 is 2756024652.

It is a self number, because there is not a number n which added to its sum of digits gives 2564206572.

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 7 ways as a sum of consecutive naturals, for example, 20718 + ... + 74549.

It is an arithmetic number, because the mean of its divisors is an integer number (249411624).

Almost surely, 2^2564206572 is an apocalyptic number.

It is an amenable number.

2564206572 is an abundant number, since it is smaller than the sum of its proper divisors (3421672404).

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

2564206572 is a wasteful number, since it uses less digits than its factorization.

2564206572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97517 (or 97515 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 2564206572 is about 50637.9953394682. The cubic root of 2564206572 is about 1368.7296324068.

The spelling of 2564206572 in words is "two billion, five hundred sixty-four million, two hundred six thousand, five hundred seventy-two".