6561052067 has 4 divisors (see below), whose sum is σ = 6608943096. Its totient is φ = 6513161040.

The previous prime is 6561052061. The next prime is 6561052081. The reversal of 6561052067 is 7602501656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6561052067 - 2³² = 2266084771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6561052067.

It is not an unprimeable number, because it can be changed into a prime (6561052061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23945309 + ... + 23945582.

It is an arithmetic number, because the mean of its divisors is an integer number (1652235774).

Almost surely, 2^6561052067 is an apocalyptic number.

6561052067 is a deficient number, since it is larger than the sum of its proper divisors (47891029).

6561052067 is a wasteful number, since it uses less digits than its factorization.

6561052067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47891028.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 6561052067 is about 81000.3214005969. The cubic root of 6561052067 is about 1872.0803928929.

The spelling of 6561052067 in words is "six billion, five hundred sixty-one million, fifty-two thousand, sixty-seven".