6542565433 has 4 divisors (see below), whose sum is σ = 6548392528. Its totient is φ = 6536738340.

The previous prime is 6542565389. The next prime is 6542565451. The reversal of 6542565433 is 3345652456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6542565433 - 2¹⁷ = 6542434361 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 6542565433.

It is not an unprimeable number, because it can be changed into a prime (6542565473) 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 3 ways as a sum of consecutive naturals, for example, 2911863 + ... + 2914108.

It is an arithmetic number, because the mean of its divisors is an integer number (1637098132).

Almost surely, 2^6542565433 is an apocalyptic number.

It is an amenable number.

6542565433 is a deficient number, since it is larger than the sum of its proper divisors (5827095).

6542565433 is a wasteful number, since it uses less digits than its factorization.

6542565433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827094.

The product of its digits is 1296000, while the sum is 43.

The square root of 6542565433 is about 80886.1263320231. The cubic root of 6542565433 is about 1870.3204606793.

The spelling of 6542565433 in words is "six billion, five hundred forty-two million, five hundred sixty-five thousand, four hundred thirty-three".