6564574025 has 6 divisors (see below), whose sum is σ = 8140071822. Its totient is φ = 5251659200.

The previous prime is 6564573997. The next prime is 6564574033. The reversal of 6564574025 is 5204754656.

It can be written as a sum of positive squares in 3 ways, for example, as 1037097616 + 5527476409 = 32204^2 + 74347^2 .

It is not a de Polignac number, because 6564574025 - 2¹⁴ = 6564557641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 131291456 + ... + 131291505.

It is an arithmetic number, because the mean of its divisors is an integer number (1356678637).

Almost surely, 2^6564574025 is an apocalyptic number.

It is an amenable number.

6564574025 is a deficient number, since it is larger than the sum of its proper divisors (1575497797).

6564574025 is a wasteful number, since it uses less digits than its factorization.

6564574025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262582971 (or 262582966 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 44.

The square root of 6564574025 is about 81022.0588790485. The cubic root of 6564574025 is about 1872.4153091548.

The spelling of 6564574025 in words is "six billion, five hundred sixty-four million, five hundred seventy-four thousand, twenty-five".